This moist and delicious keto chocolate mug cake is the perfect size for one. Made with almond flour and cocoa, it has a perfect cake texture.
If you’re a woman, you probably understand what I’m about to say, but sometimes I could literally go-out-of-my-mind for something chocolate. It doesn’t matter what it is - a chocolate smoothie, a chocolate cookie, a chocolate truffle, or a piece of chocolate cake.
When this chocolate craving hits, I don’t want to get out 12 ingredients and wait 40 minutes for a keto cake to bake. I want something fast and delicious and NOW! But, it has to be a single serving cake because, Lord knows, I would eat a whole cake if it was available. (Okay, so that was an exaggeration, but not by much!)
Keto Chocolate Mug Cake
My chocolate craving buster of choice is this keto chocolate mug cake. It’s super easy and the texture and taste is like the real thing - we’re talking a real chocolate cake in a mug!
I like to use cute ½ pint wide mouth mason jars for my cakes because I LOVE THEM. They are the perfect size for this 6 oz (volume) chocolate mini cake, but a small cappuccino cup works, too.
The fact that the chocolate cake cooks in just 50-60 seconds is even more attractive. There’s no excuse to go out and grab a snack from somewhere else when you can make this at a moments notice.
And because keto mug cakes are a single serving, I could literally eat a whole cake and not feel guilty about it. Something this delicious is the perfect cheat.
I know many of you are into “cheat days”. While some of you go off-plan, I think it’s fun finding something on-plan that tastes great and kills that chocolate craving.
Next level keto chocolate mug cake!
To take this cake to the next level try some of these ideas.
- add a few berries to the batter
- add 1/16-⅛th teaspoon flavoring extract to the batter
- put a spoonful of sugar-free jelly in the center of the batter
- place a small square of dark chocolate in the middle of the batter before cooking
- put a spoonful of sugar-free chocolate hazelnut spread in the center of the batter
- top with sugar-free homemade hot fudge or store bought sugar-free chocolate sauce
- top with whipped cream or whipped coconut cream
- sprinkle cinnamon, cocoa powder, powdered sweetener or grated chocolate on top
Why this keto chocolate mug cake is different:
Most mug cakes call for a whole egg. While this is efficient, it produces really dense and tough cakes. It took me about 15 tries to get this recipe just where I want it in taste and texture. The secret is using just the yolk and some mayonnaise. The yolk adds structure to the cake and the mayo makes it nice and moist.
This recipe works very well as a peanut butter mug cake, too. Make sure to see the peanut flour mug cake recipe I did for Sukrin USA.
What to do with that leftover egg white!
So now you have a leftover egg white. What do you do with it? Add it to another baking recipe, add it to the egg when making homemade mayonnaise, Whip it and fold into cream cheese clouds, or add it to your morning eggs.
-OR- Wait for it..... save it to make another mug cake. A single egg white works in this recipe, too.
Egg whites freeze really beautifully. I freeze three at a time so I always know how many are in any container I pull from the freezer. They are especially great in psyllium bread recipes or in buttercream frosting.
This easy Keto Chocolate Mug Cake is 3 net carbs per cake.
[Post and recipe may contain affiliate links. Purchasing through a link may result in my earning a small consideration at no extra cost to you.]
Keto Chocolate Mug Cake
Ingredients
- 2 tablespoon almond flour
- 1 tablespoon cocoa powder
- 1 tablespoon low carb sugar (Swerve or Lakanto)
- ¼ teaspoon baking powder
- 1 tablespoon mayonnaise (use sour cream in a pinch)
- 1 large egg yolk
- 1 teaspoon water
Instructions
CAUTION:
- Be very careful using only stevia to sweeten chocolate baked goods. The bitter compounds in stevia and the bitter compounds in chocolate have a synergistic effect, making your treat terribly bitter!
Preparation:
- Fluff up the almond flour with a whisk before measuring and SIFT THE COCOA POWDER BEFORE MEASURING. (I sift any cocoa powder I buy and keep it in an air-tight container. This breaks apart any lumps for more accurate measuring. Using compacted cocoa results in using more cocoa and a bitter cake.)
Method:
- Measure the dry ingredients into a mug or jelly jar and mix completely with a fork.
- Add the mayonnaise, egg yolk, and water, stirring completely making sure to get it all from the bottom. Let batter sit 1-2 minutes.
- Microwave for 50 seconds, depending on your microwave. 3 Net Carbs.
- NOTE: Although the texture is a little different, 1 large egg white can be used instead of the large egg yolk, solving the problem of a leftover egg white.
Video
Notes
Nutrition
s
Hi - first, thank you for the great recipe. It had a wonderful rich chocolate taste. I enjoyed it! Just one problem, it came out just a bit too dry. I followed the ingredients and instructions to the letter. My question is - what can I add to make it less dry?
Kim Hardesty
You may have a more powerful microwave than I. try reducing the time by 5-10 seconds and see if that helps. -Kim
Dixie Walmsley
The Swerve after taste (I think the alcohol sugar) was strong and unpleasant. I think I'll try Besti allulose.
Kim Hardesty
Good idea, Dixie. I don't enjoy Swerve as much as others - I feel that it burns my throat, but the Allulose should do nicely. -Kim
Cynthia Needham
I just made this mug cake. It is very moist. I used the sour cream instead of the mayo. I think that, for my taste, I would've like for it to be a bit more chocolatey. I'm not sure how more cocoa would've affected the texture, though.
Meme
Turned out great. I've tried several different recipes that were pretty good but this one is the best I've had.
R Hughes
AMAZING! I can’t believe the difference the Mayo & yolk only, made.
So darn moist. I put a dollop of Choczero chocolate syrup on it while it was still hot. Made it sticky good. I’ve been experimenting w different recipes and this one is by far the most moist and closest to cake. Thank you so much for your recipes and look forward to trying more.
Rosen
I made a Rum cake from the keto chocolate mug cake recipe and it was delicious. I omitted the cocoa. Adding Rum extract & cake batter flavoring. Also some brown sugar swerve for richness. Probably not necessary but wanted the added sweetness. To make it nuttier I added heart of hemp seed. Nooked then topped w homemade whipped cream. I didn’t measure the added ingredients. I served it w espresso & cappuccino. Lovely desserts.
Rod
Thanks for the recipe, it’s simple and sounds delicious.
Debbie
This is my second recipe that i have tried! First i used your bacon spinach quiche! Now chocolate mug cake! Your the BEST!! Love using your information! Always simple and just what i need. !
Rebecka Gibbs
I just keep making this every night! I finally make up multiples of the dry ingredients to save time.
JoyousMN
Wonderful. I added 1/4t vanilla nut extract and a few pecan pieces to the top before cooking. Afterwards I topped it with whipped cream. Super yummy although not quite sweet enough for me. I used 1T swerve, next time I'm going to add 1 additional teaspoon.
Helen Lydon
This recipe has come into my life when I needed hope & help, thank you! This is the best low carb choc mug cake I have ever made (I've made about 20 in the last 2 years and just ended up going back to regular cakes) and I managed to make a generous one below 3 carbs; 15g ground almonds, 15g organic ground flaxseed, 15g cocoa powder & all the other ingredients as listed by Kim. Because of this, I made a rich topping amounting to around another 2-3 carbs; 1/2 sachet avalanche sugar-free hot choc powder, 1 tsp cocoa, pinch of salt, around 1 tbsp dbl cream mixed in which forms a lovely light mousse texture within seconds & a couple of drops of sweetener - I put 1/2 on one side of my mug cake, then added orange oil to the remainder of the choc mousse mix & put that on the other 1/2 of my mug cake - it was absolutely delicious. I really can't thank Kim enough...I'm newly diagnosed T1 & also going through menopause & get ferile carb cravings which sets off a vicious cycle of high glucose/high insulin. I only had to take 0.5 units of insulin for this mug cake as opposed to say 4 units for a flour cake or bar of chocolate like Mars. Mrs. Kim, recipes like these don't just bring joy to the palette, they help save lives too! Thank you
Kim Hardesty
Thank you, Helen, for your perfectly lovely comment. How fun that you made this recipe your own with the yummy "mousse" addition. I'm so happy to hear that this recipe was delicious enough to satisfy your craving for cake, but even more thrilled that it helped you keep your blood sugar down so that you could use less insulin. Well done! -Kim
Nicole
This is delicious but when I looked at all of the nutrition labels (I used Swerve for sweetener) I found it to add up to way more than 7 g of carbs. Where are you getting 7 g from? I'm wondering if it's the brand of almond flour or cocoa I'm using. I do low carb but not keto so I don't use net carbs I use actual carbs.
Kim Hardesty
Nicole, I calculate my nutritional info on Fatsecret. It has one of the best databases for this. I also enter all of my ingredients as weight instead of choosing the pre-maid values. Be careful choosing ingredients like mayo - some brands contain a lot of sugar and if you choose that ingredient in your calculations, your nutritional information will be off. Also, I do not enter the sweetener into the calculations since the body doesn't digest it. Adding it to the ingredient list when calculation will falsely inflate the carb count. I've been doing this for 7 years and know how to get the most accurate counts I can possibly get out of the calculators I use. BTTW, MyFitness Pal is notoriously terrible for calculating nutritional info, in my experience. -Kim
Helen Lydon
Hi Nicole,
I made my delicious mug cake at less than 3 carbs - the only diversion I made from Kim's recipe was substituting a tbsp of almond flour with organic flaxmeal - with the ground almonds I use, even if I used 2 tbsp, I can't for the life of me work out how Kim's recipe would reach even 5 carbs let alone 7 - there's barely any carbs in the other ingredients, so it must be the almond flour you're using?
Amanda Galvan
Tastes delicious and so easy, one recipe I actually had everything for
Philip
I was getting a mug cake that rose. Texture 10/10
Taste 10/10
Recipe 10/10
Thank you so much
Phil
Jan Revelle
This recipe didn't work for me. I don't know what I did wrong.
Kim Hardesty
Hi Jan. Here are a few things to keep in mind.
1. Using compacted cocoa powder will result in using much more cocoa powder than the recipe calls for. Alway sift your cocoa when you buy it and then store it in an airtight container.
2. Make sure to use ALMOND FLOUR, not almond meal. Almond flour id very finely ground blanched almonds. Almond meal is ground with the skins on and has a chunkier texture. They do not behave the same in recipes.
3. Microwaves differ in power. You may need to cook it at shorter or longer duration.
4. Using the egg yolk and a neutral tasting mayonnaise produces the best result.
5. Stevia based sweeteners may make chocolate baked goods bitter.
I hope this helps. -Kim
Carlotta
What would be a good substitute for the almond flour in this recipe? I have a peanut/tree nut allergy.
Kim Hardesty
Hi Carlotta. Try about 1 tbsp of coconut flour or substitute sunflower seed flour for the almond flour. -Kim
Joy
Nice and moist. Added unsweetened coconut to my husband's. He's a happy man tonight!
Dalal N
I followed this recipe exactly and it turned out perfect! It was moist just as advertised. It turned out much better than the chocolate cakes I made in my oven. Thank you for this!
Lori
Can I use swerve confectioners sugar since I only have stevia on hand?
Kim Hardesty
Yes. You can use Swerve. Because it's powdered, you may want to add a little bit more (maybe 1-2 tsp.). -Kim
Richard Marsden
Batter, my mix was a solid lump, are you sure the liquid elements measures are correct! Fail.
Kim Hardesty
Hi Richard. I'm sorry you experienced a "Fail". That's not fun.
I'm guessing that the cocoa you used was compacted. Cocoa powder is famous for settling during shipping and compacting into a solid mass. When one goes to use it, they end up using 2-3 times the intended amount. Also, cocoa powder is extremely absorbent (kinda like coconut flour). So if one uses more cocoa powder than a recipe calls for, it will be a "solid lump" upon mixing.
Further on a possible measuring issue: It's also important to fluff-up any low carb baking ingredient before measuring. Almond flour and coconut flour both clump and form lumps upon sitting on the shelf; the former because of its inherent moisture content and the latter because it absorbs ambient moisture. Clumps result in using more of an ingredient than a recipe intends.
Lastly, when measuring ingredients, dip and scoop up, then level across the measuring cup/spoon with a sweep of a straight edged knife to remove excess ingredient. Avoid pushing up against the side of the container, which compacts ingredients- leading to using more of the ingredient than intended.
Other than that... Make sure to use the yolk from a large and not a medium egg and check that you used finely ground blanched almond flour instead of coconut flour or oat fiber.
The recipe works. With everything else equal, the only point in variability would be microwave strength and that is a small experiment in varying the time. I hope this helps you find success. -Kim
laurne
I used coconut oil instead of mayonnaise and it still turned out amazing
jennifer
What a treat. Great flavor, great texture. I like using swerve confectionary sugar.
Lynda
Just tried this recipe. Divided it between two ramekins and zapped for 40 secs. Turned out really well, I was delighted. Will make again next time the craving hits.
Brandy Lynch
Love this recipe I add lilys choc chips to the center for a nice warm lava with a scoop of low carb vanilla icecream very delicious it's my go to mug cake. Tks
Letitia
Brilliant! This is exactly what I've been craving. The tips about Stevia and bitterness. Mayo! And seperating the egg,will all be valuable moving forward
Mary Franchini
I was wondering if you could bake it in the oven instead of the microwave, since l don’t even have one? And if so, for how long?
Thank you!
Cant wait to try it!
Kim Hardesty
You can, Mary, but because it is such a small amount, I would be afraid of over baking. There was a comment that mentioned baking and how they did it. I think they used a toaster oven set at 350. If you are baking in a glass ramekin, remember that glass is slow to heat up and holds on to heat for a long time. -Kim
Tara
Perfect texture
Irmina
I wanted to see everyones comments but i can not see them on.this one :(
Connie
Just made the best keto chocolate cake that I have eaten yet!!! Awesome recipe!! Thank you!!
Mo
Just made this and definitely one of the best keto mug recipes out there. Fluffy and moist! Had a question. How can I make this a protein keto mug cake? Just add a scoop of my chocolate gold standard whey protein powder? Or what adjustments do you think would need to be made?
Kim Hardesty
Hi Mo. I'm glad you like the mug cake recipe. I find adding protein powder to mug cakes makes them tough - it's the stirring that does it. I would have to spend several days getting it right, so I suggest starting with 1 tablespoon and more water and see what that does. Adding a whole scoop will result in an entire recipe re-do. -Kim
Sl
What brand of mayo do you usr? I use Dukes mayo. It has the least amount t of sugar. Will the taste be different if I use a whole egg? Thanks for yummy low carb recipes.
Tracy Lee
Just tried for a quick sweet fix. It was great! Will definitely be making this again and again. I did add about 1/4 tsp vanilla extract and a tiny pinch of sea salt
Renee
This is by far my favorite mug cake I normally add just a couple of Lillys chocolate chips and a sprinkle of crushed pecans and instead of using a teaspoon of water I use a teaspoon of Jordans skinny syrup it definitely brings out the flavor even more
Suni Krell
Excellent and super easy to make! Thank you so much for sharing this with us♥️
Amberlee
So good! I topped my with some leftover keto cream cheese frosting. This will be on repeat at my house!
Teresa H Pridgen
I can't tell you how many times this recipe has helped me stick to my diet. I love it! I do add just a sprinkle of salt because I like salty and sweet. Thank you!
Urvashi
Definitely the best i tried so far!!
C. A. N.
Excellent dessert for that chocolate cake need. I put a tbl of Too Good vanilla yogurt on top and it was a nice extra touch for this yummy dessert. I'll definitely make again. Next time I'll make some fresh homemade whipped cream for it. And the 50 seconds microwave cooking time is AWESOME!!
Swarna
I made it and the texture was great and no eggy taste! Thanks for sharing it was such a treat!
Mary
I never leave reviews but this one i will. I was worried about the mayo and so little water but I was wrong. It definitely hit the spot when craving chocolate.
Marie Everson
Wow I am so floored at how good this chocolate cake mix is. I mean honestly it doesn't even taste "healthy" it's so good! Thank you for this recipe you have literally helped me save on calories!
Will
Excellent texture and flavor! I never thought I'd make a cake with mayonnaise. I recommend using Dutch process cocoa, and a small pinch of salt (kosher if you want the occasional blast of salt) for insurance to hide any bitter flavors, and to boost the percieved richness of the chocolate.
It's hard giving up desserts. Now I don't have to!
Brandy
Hey Kim, really enjoyed this recipe! Any chance you could convert this into a recipe for an 8inch cake? 🙏🏻
Linda
I have tried at least 10 low carb chocolate mug cakes this is the best! thank you. It’s quick it’s easy and delicious
Tsering Sun
Hands down the best keto mug cake I’ve ever tried and eaten :) this is going to be my go to recipe !
Rachel
This is a very tasty dessert. It is tender and has just the right amount of chocolate flavor.
Karens
This recipe is just great. It taste like regular cake to me and I don’t feel that I am missing out anything.
Pauline
Hi!
Unfortunately couldn’t find any almond flour at the store but did manage to find coconut flour. Do I still use 2tbsp? It seems a bit try. So I added a bit more water but that didn’t really fix the dryness.
Kim Hardesty
Hi Pauline. Subbing coconut flour for almond flour is not a straight swap. Try 3/4-1 Tbsp. -Kim
Kelly
I loved this. Mine turned out excellent. Used monk fruit and no chocolate chips. I cooked it for a minute then let it sit for a minute and the texture reminded me of an actual slice of cake.
Chelsea
I made this and it’s DELICIOUS and very easy! Loved
Sharaya Lee
I’ve tried so many mug cake recipes and this is hands down the best! It’s easy to memorize and prep extra dry ingredients to keep on hand for an even faster treat. If you use this recipe definitely follow her tips and use a sweetener other than pure stevia and experiment with adding things to the middle. I like peanut and almond butter with chocolate; pure nut butters but be a bit too much so add a dash of milk to make a sauce or mix with jam for a pb&j twist soooo good!
Lotti
I never leave reviews but this was delicious. I made it according to the recipe, while I boiled (and then strained) some raspberries with Swerve. Poured the raspberry syrup over the cake and added whipped cream. Made a great keto replacement for Black Forrest cake!
Doris Miranda
First keto mug cake that is truly moist! Delicious!
Sarah
Lovely with the addition of mayo, thought it would be gross but I was wrong. I would recommend using a whole egg or adding a tablespoon on water rather than a teaspoon, mix is quite tough to stir without some extra liquid. Coconut flour may also be used (experimented with both), also experimented with a tablespoon of almond milk rather than water, which was preferable (for me); gives a slightly more flavourful result. I also added a bit of 85% dark chocolate in the middle of the mix before cooking for my latest attempt, to make a lava cake (I needed a pick-me-up). That was perfection!
Katya Brandon
Fantastic, best mug cake I have made (and I have made many)! I did not add any sweetner to it and used a whole egg, it was delicious.
jana L. Bass
This hit the spot and I’m VERY picky with keto desserts especially chocolate ones. Thank you for the great base recipe. I added hazelnut skinny syrup and cinnamon and topped with Enlightened ice cream! Delicious
Kayla
Im speechless ! This is the first mug cake ive ever had and ever made. It was soo delicious, chocolatey and moist. It definitely cured my MUCH needed keto sweet tooth ! Thank you so much Kim for sharing this recipe.
100% recommended
Marta
This is very good, not too sweet and definitely had true cake texture/mouthfeel, I did add another half teaspoon of baking powder just a fluff it up even more and I served it with some whipping cream with allulose and vanilla extract. Excellent chocolate cake base, I can’t wait to try some of your ad-on suggestions like the chocolate chips or sugar-free caramel or sugar free jam. Thank you again!
Justin
This is my goto mug cake but I replace 1 TBS of almond flour with coconut flour and put about 10 g of 70% cacao dark chocolate in the middle!
Niccii Panos
Only a Tablespoon of coconut flour for whole recipe? Or rest of 1/4 cup filled with almond flour? Thank you in advance!
Justin
Yes 1 TBS of almond flour and 1 TBS of coconut flour. I think the texture is better. Might need to add a tad more water though.
Sharon de la Guerre
Ooh, this got the spot exactly! I added a block of 75% dark chocolate and was transported to food heaven. Yum!!
Amber
Just made this cake and it was absolutely delicious! I face timed my friend to show her and she promptly made one herself and it's 7 year old approved!
Jennifer
Just tried it, I was expecting something denser, more fudgy?....but it then I tried it and did not disappoint! it was super fluffy but a bit dry, good thing I added stevia choc chips. maybe next time I will also add a tsp of coconut oil?
Kim Hardesty
It sounds like cooking it for a few seconds less might do the trick as microwaves vary in power. -Kim
Heather
Fast, easy, chocolatey and yummy.
Emily
The best keto mug cake texture i have found. I like adding a bit of cream cheese into the middle!
Becks
Literally just saved me from diet sabotage following emergency chocolate craving! Have lost 6stone on keto and desperately avoid ‘cheat days’ as I find them so hard to come back from. I decided to google keto chocolate mug cake and this looked perfect as had all the ingredients....was a little sceptical making a cake with mayonnaise! Needless to say it was absolutely delicious (added a dollop of thick cream) and will now be my go to emergency plan! Thanks so so much :-)
Kim Hardesty
I'm so happy, Becks. I keep several small mason jars with individual portions of mix in the pantry so all I have to do is add the mayo (or sour cream) and an egg yolk. It has saved me many times, too! -Kim
Beryl
This is fantastic!!!! So easy and delicious! I will be making this many times, and I will add walnuts or pecans next time … like a brownie in a mug. Thank you so much! I needed this :)))
Toni
I decided to try your recipe after seeing it holds "first place" in reviews 👍OMG, I see why! This is really good. I will definitely be following you my friend. Thanks for sharing this tasty, quick and easy recipe.
Asifa
Just made it. Tastes great. Only thing I added was a dash of vanilla essence, pinch of salt and a dash of roasted espresso beans powder.
Sue
Brilliant
Jimmy
This recipe is awesome. I didn’t have any vanilla extract but it didn’t matter. Definitely a keeper!!
JR
So I really want to make this but I don't have a microwave! Is there any way to cook this in the oven?
Kim Hardesty
Hi JR. You may be able to use a toaster oven, but because the portion is so small, the risk for burning the cake is great. Try setting the toaster oven at 225F and you will have to watch it. Moreover, microwaves produce amazingly fluffy cakes. I'm not sure you will get the same fluffiness in the oven. -Kim
Alyssa Swedberg
Perfect! I did this in my toaster oven as I didn’t have a microwave and I cooked it at 350 for 7 minutes!! It was perfect and fluffy!!!
Azaria Davis
Loved this! Is there a recipe to make a larger version? like in a loaf pan or something? Thanks!
Kim Hardesty
Hi Azaria. I plan to make a bigger version (cooked in the microwave), but I'm not quite there yet. -Kim
Lois
This was so good and moist. I added a tablespoon of unsweetened coconut, doubled the almond flour to 1/4 cup and added a few chopped walnut chunks, added water to right consistency. Truly wonderful. Thank you for the recipe. Leaving the egg white out and adding mayo was brilliant.
Iris DeCastro
Kim, I can't thank you enough for this recipe! It's been a struggle to stay on Keto with my sweet tooth. I made this exactly as noted, using sour cream since that's all I had. I also added a raspberry to the batter. This was incredible!
John Roberts
We used monk-fruit and cacao and the whole egg. Dropped a dozen low carb semi sweet chips on top and cooked for 60 seconds. Loosened with a fork and inverted in a bowl. The chips sunk to the bottom so they were on top when plated. Served with whipped cream. It was great!!! Delicious, moist and hit the chocolate craving. Couple from Point Pleasant NJ says thanks...
Jennifer Willers
Amazing! I had everything I needed in my cupboard! Almost put only egg whites....oops, caught it just in time! It really helped me when I HAD to have CHOCOLATE.....NOW! So easy, so fast!
MaryAnn
Perfect! Don't need to learn a different recipe after this. Only thing that I might add next time is a little bit of walnuts. I used homemade chocolate fudge and as I said PERFECT! Thank you
Erin
I don’t usually comment on recipes but had to let you know how amazing this mug cake is! It honestly tastes even better than a non-keto chocolate cake- especially when topped with dollop cream and berries! It’s my go-to for a yummy treat every time!
Katie
I am carnivorish and substituted the flour for pork rinds, the mayo for heavy cream, no sugar, I forgot to add water and added just a dash of vanilla.. I am trying to perfect this mug cake thing because it’s hard to do with this diet but this was actually pretty good!
Kim Hardesty
Yeah. Carnivore is quite a bit more restrictive. I have made pork rind pancakes before (about 10 years ago) and have a recipe for pork rind wraps that are great as a tortilla sub or sandwich wrap. I haven't tried a pork rind mug cake though. That may be worth the experiment. Thanks for the idea. -Kim
Sheila Howard
Omg! Thank you. I was needing chocolate baaaaad!!! This is really good! Thank you
Nicole
Ahhhmazing!
Teresa H Pridgen
I admit I wasn't sure if this would taste good and it didn't just taste good, it was absolutely delicious! I would never have guessed it was sugar free and low carb. I put a scoop of carb smart vanilla ice cream over it and gobbled it up. Thank you so much for perfecting this recipe! ❤
Yolanda
I have been in the hunt forever! This was so amazing. I added two tbsp of lakanto. Tipped it with some Lily's chips and walnuts. Ughhh thank you so much
Mary
This is a good recipe. I did find the cake to be really dry, but that is what cocoa powder does.. Sucks the moisture out of everything. SOOO, I made this again but doubled the recipe and added 1/4 c water to the yolk/mayo mixture.. And after added it to the flour, it was a very loose batter but the end result was so moist! I microwaved for 90 seconds and make sure ur mug is big enuff so it doesnt over flow.
Terry
My cocoa was bitter from not following instructions. Also need to get a different Keto mayo. Mine had garlic and onion pre-mixed in. Will try again.
Shan C
Okay, so I tried this, but used coconut flour and Stevia (what was available. I also added just a little more water. It was soooo good!
Hannah
This was seriously good! The texture was great and taste was fabulous. I added some stevia sweetened chocolate chips and it was too good!
Siow Bih
Hi, what would be a good alternative if I do not have a microwave for this recipe.
Kim Hardesty
You can cook it in a toaster oven or regular oven at 350 F. The only thing I worry about with the oven is that amount of batter is so small that it may cook too quickly and dry out. -Kim
Marcie V.
Just made this, and ate the whole cake! (The hubby helped and loved it). I added a tad of vanilla flavoring and topped with 1 each, walnut, almond and cashew. Once cooked, I sprinkled a tad more monk fruit granulated sugar and a sprinkle of cinnamon! Delicious! Thank you for this recipe. I’ve tried several while on keto and I have to say this is probably the best one I’ve had.
Casey
I made two so I just used the whole egg. I used Monk Fruit sweetener and cacao powder (same amounts).
Microwaved for 1:45-2:00 minutes.
Put 6-7 dried cherries in one. Yum. Poured heavy cream over cake rather than mess with making whipped cream. Also yum.
Lauren
made this! so good! great, with keto ice cream on top.
Trudy
Delicious
Bet Rae
Followed directions carefully, had to add more water.
The batter lump stayed at the bottom of the cup.
Kim Hardesty
Hi Bet Rae. I don't know what happened. Did you fluff up the almond flour with a whisk and sift the cocoa powder BEFORE measuring? Also, what sweetener did you use? -Kim
shebson
Melt in your mouth goodness.
Sue ferguson
Fantastic keto chocolate mug cake. Best I've ever tasted!! Definately going in my keto saves. Thanks for keeping me on track.
Carrie
Perfect every time! Thank you for this wonderful recipe!
Nina
Mine came out bitter.Could it have been the Stevia liquid?Wish I could find a sweetener that taste just like sugar!
Kim Hardesty
Probably, Nina. That's why I mention that it's not a good idea to use stevia in the recipe. In fact, it's the first thing I mention after the list of ingredients. Also, make sure that you sift the cocoa BEFORE measuring so you aren't using double the amount of cocoa. You could try Ez Sweetz if you prefer a liquid sweetener (it's liquid Splenda). -Kim
Karen Mattes
Actually, I was confused by your wording 'Be very careful using only stevia to sweeten chocolate baked goods.' ... I read that as saying be very careful to only use stevia. PS: I made this for a friend and myself, and it was a hit!
Aleta Howell
This is the best keto cake recipe I’ve tried. Tastes just like a moist, decadent brownie!
Shazzy
A nice treat. Moist and fluffy. I added some whipped cream and thoroughly enjoyed it.
Faery
Umm, wow! Taste and texture like a ‘normal’ mug cake. Sceptical about the mayo but it completely works. Halved the sweetener and used Natvia (Australia). Added a 1/4 tsp vanilla essence. This is now my go to choc treat.
pearl
This was sooooo good! Made this today. Variations done: sour cream instead of mayo, whole egg and added no water, 4 teaspoons golden monkfruit sweetener instead of 1 Tablespoon low carb sugar. Plus added some bittersweet chocolate on top. Yummmm!
Lena
One of the best mug cake recipes I’ve yet to try while on my keto journey. Topped mine with whip cream and it was perfect for my sweet tooth!
Stacy
I just got thru eating my cake and it was wonderful. I added in 2 tsp of PB2 powder. Next time I am going to add in some banana extract or instant coffee. Thanks so much!
GabbyP
Yum! Was searching cupboards for something sweet and instead swopped to search of the internet for a keto treat and found this recipe. OMG delicious! Put a spoon of hazelnut butter with it and so good and so allowed!
Mia
Mmm, tasty! My only suggestion is to add a drop of vanilla. It's subtle but it adds to an already great mug cake.
For what it's worth, using the barcode scanner of my nutrition app with my ingredients it came up with about 4 net carbs. Not far off at all!!
Willy
Very nice recipe. Easy to make and has a very soft texture.
I topped it with heavy whipping cream whipped with a drop of vanilla.
Sarah
First Keto mug cake I have made and glad I made this my first! Really delicious. Added a cap full of natural orange oil to the mix and tasted like chocolate orange. Bit of double cream on top too.
Mandy
The texture and flavor of this recipe is so good! I wanted it to be sweeter and the chocolate to be more pronounced so the second time I made it I modified a bit using dutch coco, 2 tbsp erythritol, cream instead of water, added sugar free hazelnut torani syrup, and a few sugar free chocolate chips. It was perfect. I did have to cook for 15 seconds longer. This is going to be my go to from now on! I’ve never had luck with mug cakes before but this one will be my go to from now on.
Kamilche
It came out good. The problem with mug cakes, is they look bad, so this was my solution...
I doubled the recipe to get around the '1/2 egg' wasted problem. I put a cupcake liner in the bottom of the mug, and half the recipe into each liner. Microwaved it for 45 seconds, 2 cups at a time. Then I used a knife to loosen the cake from the edge of the cup, and inverted it onto a plate. I knew the top was delicate and would shred easily, so I used another paper liner to 'touch' it with.
The frosting is 2 tblsp powdered erythritol, 1 tsp cocoa, 1 tsp peanut butter, 1 tsp butter, and enough creamer to turn it into a frosting.
It made 4 cupcakes.
Spooky
So, the first time I made this, it was good. The 2nd time, I used sour cream, added about a 1/4tsp of vanilla, a dash of salt, and a dash of cinnamon... beautiful! Either way, it helped calm my sweet cravings. Oh, and my microwave is only 700watt, so I had to cook for 1minute, 25 seconds.
THERESE LAVECCHIA
This was awesome! I want to make this for my daughter who loves mug cakes, only with sugar. How much would you put? This had a really true cake flavor and texture and was great with
Swerve but she doesn't have to eat sugar free like me.
Kim Hardesty
If making for a child, you may want to use a little more sugar (maybe double?) in place of the low carb sweetener since kids prefer thing sweeter. -Kim
PJ
Amazing flavor and true cake texture
Oana
This was haven! Thank you so much for the recipe.
Sarah
Delicious!! Totally satisfied my craving. I made it with strawberries and a few chocolate chips and my husband and I loved it!!
Caitlin Rodrigo
Best recipe I have found!!
Natcha
Hi Kim! I tried the recipe, I used 1 whole egg. It turner out fine but not sweet at all. Hahaha ... will IT be smart to add more sukrin?
Kim Hardesty
If it's not sweet enough for you, add more sweetener. Everyone had their preferred level of sweetness. -Kim
Ronda Harris
OMG this is hands down, the BEST mug cake I've ever had!!
Brittney
This was my first time making a keto night cake and it was pretty good. I also have a sweet tooth but found this to be a little too sweet. I couldn’t finish it bc it was just so rich! And close to no bet carbs!!!! I love it! Next time I will put a little less sweetener and poke holes in it after cooking and pour some heavy whipping cream on top. Make it like a chocolate tres leches cake (but a keto uno leche cake 🍰😂)
Lyn J
I just made this yummy chocolate mug pudding, in Australia. I halved the sweetener, Erythritol, as I wanted to serve it with Keto icecream. Surprised to find mayonnaise in the recipe, but it was perfect. Made a half-mug, so there was room for the icecream. Perfect size!
Erica
The texture is perfect, however if you are a sugar addict like me, this will require a lot of sweetener. I mixed swerve and erythritol with minimal effect. It tasted as though there was no sweetener added. I will try doing a cream cheese and egg white "frosting" with stevia or monk fruit to help it along. But again, the texture is heaven!
sandra l pereira
I added a bit of almond extract and it was amazing!
Angela M Brashears
So good. I even had to use Stevia and it was amazing. I've been trying recipes for a birthday cake all week. Your recipe is the only one I finished and licked the mug clean.
Angie
Kathryn
Thank you! Just what I needed on keto- cake!
elizabeth guillen
this is my first time making mug cakes on keto, i accidentally put baking soda instead of baking powder it was extremely bitter. next time i should read more carefully and put baking powder.
Kim Hardesty
Hi Elizabeth. If it's bitter again, make sure you aren't using stevia in your sweetener or use less cocoa powder. It could be the brand of cocoa powder is slightly bitter. -Kim
Stacey
Great great great!
Ann
uh.ma.ziing!
I used 2 yolks in mine and added some sugar free chocolate chips and crushed pecans
Loraine
Best mug cake I’ve have! I used truvia and didn’t turn bitter. Thanks!!
Wade
Very delicious BUT when I imported this recipe into Carb Manager it listed it as 16 net carbs. That’s a long way from the 3 net carbs listed.
Did anyone else find this?
Kim Hardesty
Hi Wade. I have answered this question many times in the comments. My numbers are accurate. -Kim
Dee
Awesome mug cake! — the best I have had so far! If u add to Carb Manager app, edit the recipe and remove “sugar.” It’s using the real thing instead of Swerve
(Or whatever sugar substitute u used).
Connie
Delicious and easy....thank you!
melissa b
This is the first time I’ve ever made the cake.
This was disgusting!
Kim Hardesty
Hi Melissa. If you used a zippy mayonnaise, that may be why you didn't like the cake. Either use a mayo more bland in flavor or try it with sour cream next time. I bought Sir Kensington mayonnaise the other day and it is very strongly flavored. It would not be a good choice for this recipe. I'll make a note. -Kim
Paul
Absolutely amazing mug cake! Nervous about the mayo but followed the recipe exactly and it was perfect! Truly delicious. I have it with heavy whipped cream for the perfect dessert! Thank you for the awesome recipe!
Shay S
This was so delicious! Thank you for this. Yummy!
Tasha McPhee
Can I cook this in the oven?
Kim Hardesty
Hi Tasha. You can.... I would use a toaster oven instead of a large oven just because the serving is small and the potential for over-baking is so great. I never tested it in the oven. I would try it at 325 F and watch it very carefully. Remember that glass containers heat slower but hold on to heat for an extended period of time resulting in up to 30 minutes plus of "carry over" cooking. Good luck. -Kim
Randi
This is a great recipe, but after making it quite a few times, I tried substituting coconut flour and I am just kicking myself at the catastrophe I made. 😩. Not doing that again....
Jessie
This is the best chocolate mug cake I have tried so far. I put a few sugar free chocolate chips in the batter. Next time will save the egg white and try it that way. Thanks!
Bonnie
This is by far my favorite mug cake recipe. It hits the spot every time I crave chocolate. I am really starting to develop a taste for almond flour now, and it took a while. This recipe is absolutely my go-to, though, and I'm sure I'll continue making it a weekly addition to my menu.
Deirdre Greene
Wow, this is soooo good, 3 weeks into keto & I was so close to cracking when I thought to google "keto cakes" & thank goodness I did. The cake was so easy to put together with ingredients that most people would have on hand, a few stirs, 50secs in the microwave & then dig into chocolate heaven...I topped it with whipped cream & now I'm addicted!!!!
Silvy
Great recipe. I will admit when I saw mayonnaise I was skeptical but so moist!!!! Thank you well done.
Vee
This is the first keto mug cake recipe that had the taste and moist, almost fudgy texture that I was looking for!
I topped mine with some Lily’s chocolate chips before putting it in the fridge! Delicious!
Darleen Fay Thompson
I just made this and it turned out great! It was tasty, the texture was nice, I added some sugar free chocolate chips and topped it off with some whipped topping.
Aki
Wow! Usually I don’t like what I make.
This is amazing! The flavor, the texture, the ease of preparation. I’m having it with coffee right now!
Yum 😋
Jo
Wonderful recipe base. I was forced to do some substitutes ( honey instead of granular sweetener as I was out of mink fruit and heavy cream instead of mayo+water, as my only mayo had seasonings added).
Other little fun things I added were a pinch of sea salt, a scattering if Lily’s chocolate chips, and a pinch of xanthan gum ( to be honest, not sure what that specifically did as far as texture, maybe next time I’ll skip it and see)
Whipped up some heavy cream for the top and it was absolutely amazing. Honestly, the only downside is the portion size always leaves me wanting more so I might just double each serving in the future.
The boys left us girls alone to go fish, well we can have ourselves some enjoyment too! So walked to the farmers market this evening to get eggs so we could whip these babies up.
Thank you for sharing this recipe!
Kim Hardesty
Hi Jo. I'm glad you found some substitutions that work. Strange times... I hope the "boys" caught some fish although sometimes its the sitting and waiting that can be the best part. A walk down to the Farmer's Market sounds idyllic. Be well. -Kim
Chandni
Absolutely delish....I am so amazed at how quick it was to make and tastes really pleasant. This is a real motivator for me as I have a really bad sweet tooth and this is my motivation...something to look forward to at the end of the day!! have the egg white left over will give it a try with that tomorrow and hopefully use this as a base for other variations.
Corrina
This was a great, quick recipe. I'm on my second week of Keto and just wanted something a little sweet and chocolatey and this hit the spot! I'll definitely be making this again.
Mary
Bitter. I even went and bought the recommended sweetener. How can anyone eat this? I made it EXACTLY according to directions. I even doubled the sweetener...nope. Still bitter.
Jennifer
I recommend buying Lilly’s semisweet chocolate chips and adding some. It’s a game changer!
Donna
I've never reviewed a recipe before but having been keto for a few years and trying all the tricks for every imaginable recipe, I had to post about this one. This is the best mug cake I've had. By far! And I've made them all!!! I swapped out the water with coffee for an enhanced choc flavor and topped with a few sf choc chips, but it's yummy just the way it is.
CC
What size mug is best? Btw. The swerve you recommend is apparently not at all sweet. But the chocolatiness made up for it.
Kim Hardesty
Hi CC. I recommend a smaller mug like 6-8 oz capacity. Everyone's taste buds like a different level of sweetness. The amount specified in the recipes was sweet enough for me, but I understqnd that others may prefer things sweeter. Just add more sweetener. -Kim
Chelsea
This was absolutely incredible. Wow. How is this keto?! I made it with sour cream because that’s all I had on hand, and it was a 10 out of 10. I don’t even normally like almond flour but decided to give this recipe a try because of the amazing reviews and I am just blown away with how moist and flavorful It was. Thank you so much for this fantastic recipe!
Alla Churchill
I don't understand your warning about using Stevia and it's reaction with dark chocolate. Should you use Stevia or not??
Kim Hardesty
Hi Alla. I wouldn't use stevia to sweeten chocolate because it will make it bitter. However, some stevia products are less bitter. If you have stevia glycerite, it might be okay to add a few drops. I prefer to use the erythritol based sweeteners in this recipe. -Kimm
Marie
Easy, easy! It really took 3 minutes to make, 70 seconds to cook, and 5 minutes to eat it with...yes slices of butter and pecans!...and a slight drizzle of sugar free maple syrup! Aaaaamazing!!! I will try the peanut butter recipe tomorrow. This recipe is easy, simple, moist and tasty. Thank you!
Dawn Brotzman
Absolutely delicious!
Diane
I made this tonight for my husband and I for our keto diet, we absolutely loved it! It was the best tasting keto cake we’ve had. It was so moist and tasty! I put a few sugar-free chocolate chips on top before I put it in the microwave and then I topped it with whip cream and five fresh raspberries. It was heaven! We can’t wait to try the other two mug cakes! Thank you so much for the recipe!❤️
Melissa
Don’t usually take the time to post comment when I make a recipe, not that any of the recipes I use are not good enough too, but I wanted to shout out and say how Delicious and perfect this recipe is! Kids even loved it! We made homemade keto whip cream for top. So good fighting myself not to make another one! Sweetener I used was swerve only bc I am out of monk fruit!
BP
Deeeeelicious! I added a spoonful of sugar free preserves and then some whipped cream on top. It was moist and delicious. Better than non-keto mug cakes.
Aaron
I definitely had my doubts...but just made this and it was outstanding!! Will certainly be a go to for me in the future!
Debbie
Curious on the carbs. One spot it says 3 carbs, and where the nutrients are listed, it says 7?
Kim Hardesty
Hi Debbie. The total carbs is 7g, the NET CARBS (total carbs minus fiber) is 3g. People who track total carbs do not subtract fiber and keep their total carb number just under 50g. People tracking net carbs subtract the grams of fiber from the total carb number and try to keep their carbs between 20-25 grams. The nutrition program I use tracts total carbs, so I also provide the net carb number. I hope this helps. -Kim
Michael Costantini
Just made this fabulous dessert, It was easy & came out perfectly. I used sour cream because I didn't have Mayo. Wouldn't change a thing! Just added some whipped cream.
Rose Summers
I made this last night, double batch so I used the entire egg, microwaved for 90 seconds, followed the recipe exactly otherwise.
It. Was. Perfect.
I made it again tonight (regular size with yolk only), except I subbed plain Greek yogurt (full fat) for the mayonnaise (an attempt to cut calories) and added 1/8oz 100% cacao shavings and almond slivers. Not as good. The texture was crumbly, dry. Didn't rise much. Not as palatable. Still springy though. Still ate it LOL
I'll try next time with lite mayonnaise (if I don't get around to making my own), but will DEFINITELY save this recipe for the future. Thank you for this, you saved my diet. As a recovering 26yr sugar addict, this isn't just a daily struggle but sometimes an hourly one. 🙏 this helps.
Lyn J
Rose Summers, I hope you're still on Keto. My suggestion is, make a list of recipes you've found online and tried, such as keto rum balls, carrot cake, tiramisu, chocolate mousse, fudge slice, and make one every week as your go to snack. I've been eating keto, well mostly, since late January and just hope to maintain my weight now. But I still need snacks sometimes. And there's always peanuts or cooking chocolate if you need an instant boost.
Teresa Hickey
Delicious! I drizzled heavy whipping cream over it and gobbled it up! Thank you!
Ashley
I had my doubts because this seemed way too easy - and I was wrong! This was my first time ever, making a mug cake. It was easy, fast, delicious and hit the spot! I'm looking forward to trying out different variations. Thanks for an awesome recipe!! :)
Jayne Donnithorne
I sent this recipe to my daughter but she doesn't have a microwave. So I tried it in my toaster oven. Success! I cooked it for 18 min at 350 degrees. Slightly delayed gratification but no less sweet.
Cheryl Hecker
NICE!!! I won’t use a microwave either thank you!!!
Liz
Lord I had been having a lil trouble trying to find foods to eat n being a past time sugar junkie I came upon this recipe! Easy n soo delish thank u
Ken Carter
I made it this morning and ended up having for breakfast with coffee. Definitely will become a staple for when the chocolate cravings hit.
Joy
I made two mug cakes; one had an egg yolk, the other I put the egg white. The one with the egg yolk was perfect. Had a fluffy texture that is still like cake. The one with the egg white, on the other hand, was more pudding-y in texture, like a more solid flan. Both tasted great but I prefer the one with the yolk because it's more like cake. Thanks for sharing this!
sherry diehl
I made these for my family using pecan flour and they were great, Next time I will grind the flour first because it was a little gritty and I will use a little more sweetener because it was not as sweet as I would have liked, Thank you for the great recipe.
Dani
Thank you for sharing this recipe! Can’t believe it turned out so good!! First time I really liked a low carb mug cake, definitely will do it again :)
Danielle Smith
Unbelievable! My sister is also low carb, I cant wait to make this for her! It's so good.
Kari
This was fantastic! Had a great flavor and was very fluffy. I topped it with a couple fresh raspberries and a little whip cream. It was delightful! Thank you for this amazing recipe!
Jessica Serby Touchard
That was so good! Thanks for the recipe!
Iain Macpherson
I made this for myself with the yoke and later with the egg white for my fiance. Both were amazing. Definitely and by far and away the best cake, never mind mug cake I have had.
Beck
Amazing! First Keto sweet treat I have actually liked. I didn't have an swerve so I swapped out the tablespoon of water for a tablespoon of sugar free maple syrup. It was PERFECT. 10/10 will make again. Thank you.
Jayne Donnithorne
Absolutely fabulous! The texture is perfect. I make a double batch and use the entire egg and either divide it into two 1 cup pyrex dishes or cook the entire thing in a 2 cup pyrex dish and save the rest for the next day. I love adding about 1 tablespoon of sugar free dark chocolate chips. Thank you for the recipe.
Chris Peer
Outstanding. Added a touch of Sugar Free Hershey’s Syrup. Top it with Strawberry’s and a couple scoops of Halo Top Vanilla Bean. Outstanding. Now my go to for chocolate mug cake.
Kellie C Lewis
I LOVE this recipe! I can't help but save my last 6-10 net carbs for the end of the day,double up the recipe (I add lakanto chocolate chips for the extra ingredient),make a frosting and watch a movie or my cat videos. LoL I gotta say.. it makes me so happy! And then,when my non-keto family makes boo-boo faces when I have my cake..even when they have the S.A.D. junk of thier own! Hey,I make it an option because they don't want keto ..so...they make the choice to miss out on the.best.cake.ever!!!!
Karen
Best chocolate mug cake yet!
Caroline
I liked this ok. I did put some cream over the top and added some no-sugar chocolate syrup. My husband did not like the texture of the cake, which was due to the almond flour. I'm going to try this using coconut flour.
Debi
The texture is perfect. Thanks for sharing this recipe.
Nunila Valdez
If you make it ahead and later just add the wet ingredients, when measuring out to make a mug of it, how much dry do you add? 4 and 1/4 tbsp?
Kim Hardesty
Make one serving and then measure it either by weighing or by tablespoons. Note it on your container so you know. -Kim
Cindy
Loved your recipe! Very moist and hit the spot when I was craving something sweet on my low carb journey
Jess
Can I substitute the egg with something else? I have an egg allergy
Kim Hardesty
Try some sour cream for the egg and and a little heavy cream for the mayo? -Kim
Nakeya
I'm also eating this as I type. I've never reviewed a recipe before but this is exactly what I needed. Weeks without anything sweet, I needed something to satisfy my craving that would be quick to make. Im adding this one to the list! This just made my day! Thank you.
Glenda
I prepared this mug cake and added cocoa nibs in the center. Just moist and delicious.
Vandana
I tried this and it turned out awwwesommme
Maribeth Simpson
Eating this as I comment.... I made mine in a huge wide coffee mug, so it didn't puff up much, but the texture turned out more like a brwnie, and I am in heaven!! Thanks for the recipe.... love it!
Abbi
If you replace the egg yolk with an egg white, won't you still have the problem of a leftover egg yolk? Or did you mean that a whole egg can be used in place of the egg yolk?
Kim Hardesty
Hi Abbi. If you use the egg yolk one night and have a leftover white, you can use the white to make the mug cake. The texture is just a little different, but it still tastes good. -Kim
Tanya S.
I thought after my first taste of almond flour in another recipe I found on the internet, that I was done with it!
Having a chocolate cake craving and not wanting to bake a whole cake, I started searching. I stumbled upon your recipe and tried it. OH MY!!! Thank you for this recipe!
I love it! This will definitely be a staple in my low carb diet from now on.
Kim Hardesty
Hi Tanya. Almond flour is really a beautiful alternative flour to work with. The quality of the recipe will make it or break it. With time you will learn which low carb keto blogs have good recipes and which don't. Have fun finding low carb baking recipes you love! -Kim
Linda
I love this recipe but I love adding a tablespoon or so of heavy cream to the batter. I often add nuts too.
Laurel
We have previously tried several keto mug cake recipes but gave up as all resulted in a cake that was weird tasting or had a strange texture or both. We came across your recipe and decided to try it due to the high ratings. Wow! We are so glad we did! The recipe was easy, the cake tasted great and the texture was just like any other cake. We put a layer of crushed raspberries on top and then topped that with keto whipped cream. It was the bomb! Thanks so much for the recipe and the techniques you use that make this such a success!
Den
I will be travelling to Portugal to stay for 6 weeks.. I'm not sure if they have the sweeteners available there,so I plan to make a big batch mug cake (15) to take with me... I will multiply everything by 15 and put it in a double resealable baggy... How much would I use to make 1 at a time? Love your recipes...
Kim Hardesty
Portugal sounds nice, Den. I do not know the answer to your question, but I would mix together enough for one serving and measure it before doing the big batch. Then you can write the proper measurement on the bag or your container. -Kim
Denise
Thanks for the reply Kim...Here is what I did ... I made enough for 16 servings I used 2 cups of almond flour, 1 cup of cocoa powder, 1 cup Lakanto sweetener and 4 tsp. of baking powder to make the dry mix..
Then I followed your recipe and measured exactly as in your recipe for dry ingredients
4 tbsp.+ 1/4 tsp. of the dry mixture to which I added 1 egg yolk, 1 tbsp.mayo,1 tsp. water..
It turned out great.. I topped it with homemade keto nutella and whipped cream
Thanks again ...very tasty easy recipe...I would have included a picture,but couldn't seem to upload one..
Denise
Kim Hardesty
Thanks Denise. I'll try to add some of your info to the post/recipe a little later today. I don't allow people to upload photos to the site or I would get all kinds of inappropriate pictures! Lol. Have a great day.
Meg
Omg yum! Will definitely be prepping the dry mixture into small containers so I can make them often. I was worried about the mayo but the whole thing was delicious. I topped mine with whipped cream.
Heer
Hi
What is the size of your mug? Would this work well in a 4 inch baking tin?
Kim Hardesty
This cup was about 6-8 ounces. -Kim
Heer
Well I made this twice and made it into a two layer chocolate cake with chocolate ganache. It was yum.
Annora H.
This mug cake is super moist. I did taste the Mayo just a bit, but it was not overpowering. I would add a pinch of salt next time to help the chocolate flavor come out, but I will definitely be making this one again!
Matthew
Can coconut flour be used in place of the Almond flour?
Lilly
Very good. I made my husband's with real sugar because he won't use any other kind of sweetener, and he loved it. I used avocado oil instead of mayo, added maybe 1/2 tsp of homemade vanilla, and about 1/2 tbsp semi-sweet chocolate chips. So delicious and so very light and airy.
Keira Hart
The best mug cake recipe I've come across on the net! To make it even MORE moist, fluffy and amazing, I replaced the water with a dash of almond milk. Also, I wanted to consume less calories so I swapped out the mayonnaise and used ricotta with a pinch of pink Himalayan salt and boy oh boy, its just perfect!! Add the rest of the mixture after you've microwaved a majority of it first... You'll see why
Jessica Hernandez
Absolutely the BEST chocolate keto mug cake! The mayonnaise is the key for me.
Donna Clements
Oh my good God! This is the best mug cake I have made so far, and I've been trying out reci's for over SEVEN years!
Tracy Kozy
Made this tonight, so yummy. I added 1/4 tsp of cake batter flavoring, 3 small cream cheese dollups and 5 .ghirardelli-60-cacao-baking-chips. Excellent fluffy consistency.
Reen
Another idea if feeling really frisky: a TBSP of diet Dr. Pepper. MOIST!
Sheryl Fisher
Oh my gosh! I made this small mug cake to enjoy while my son ate a slice of his favorite triple chocolate cake for his birthday. I have to share that I was very skeptical initially because I have made mug cakes before and have been extremely disappointed with the texture or the extremely eggy taste of the cake. I couldn't have been more pleased with this cake; the texture was beautiful and there was no eggy taste whatsoever.
I did make a couple of tweaks to the recipe. Instead of using just the yolk I added the entire egg and I also added a generous tablespoon of Lily's dark chocolate chips to the batter. after baking a cake in the microwave for 50 seconds as for the recipe I discovered the bottom half of the mug was still liquidy so I continued to zap the batter in the microwave at 10 minute increments until the runny batter was just set. After that I inverted the mug cake onto a serving plate and sprinkle the top with another generous tablespoon and a half of Lily's dark chocolate chips which melted on top of the warm cake. the end result was delicious and decadent; I will definitely be making this again!
sheryl fisher
OOOPS! I meant to say 10 SECOND increments...NOT 10 MINUTE...
sheryl fisher
One final comment...I used Lakanto classic monkfruit sweetener and it was PERFECT...just sweet enough without being overly sweet!
Lily
Amazing! I used sour cream and 2 Tbsp confectioners erythritol. I've been cravinf chocolate for a long time and this is perfect. Thanks for the recipe.
Diala Hakim
wonderful
Stephanie
Of all the low carb mug cakes I've tried this one is the best! Most come out like a chocolate flavored poached egg but this one actually had the consistency of a brownie! Of course it didn't taste exactly like a brownie but very close! I put a tablespoon of sugar free whipped cream on top, yum!
Karla
I absolutely love this! I would like to make this into a cake for when friends visit. Is there a recipe i could use that is equal to this taste?
Kim Hardesty
Hi Karla. I haven't made this into a larger cake yet, but it's on my list. Try the Chocolate Walnut Cake. It's a really nice cake. -Kim
Netta
This is one of the best chocolate mug cake ever!
Itab Atwy
Amazing from my first try. Thank you for sharing
Marla
I'm new to the low carb/keto lifestyle and was craving chocolate cake. I searched for keto chocolate mug cake and thank goodness this was the 5 star recipe I clicked on. OMG!! This was so good. I followed some of the suggestions and used sour cream instead of mayo; added 1/4 tsp vanilla; and stirred in 3 walnuts that I broke up. It was so good. My husband who doesn't care for chocolate cake loved it, too because it's not overly sweet. Thank you Kim for a great recipe. I can't wait to peruse the rest of your recipes. You are now in my favorites!!!!
Marie
Wow. I typically read but, don’t write reviews, however for this I have to make an exception. Mayo, only egg yolk? Weird but it works! My only revision was to sub 1/4 tsp vanilla as part of the liquid (only adding 3/4 tsp water). Oh, and I sprinkled some Lilly’s chocolate chips on top, though they were not really needed. It almost made it too chocolatey (as if that's a real thing...) So amazingly good. Thank you for your sorcery. Easy and absolutely delicious.
Vidhi
Fantastic.. so simple and so delicious
Torri
Pleasant departure from my whole egg, 2 T of butter, no mayo version. Both are moist and satisfying. I do usually put a pinch of salt in mine and did not need to with this recipe. Whipped up some keto molten lava cakes for dessert with Lily's chocolate inside! YUM-MO!
William
Not quite sweet enough, but I have had that complaint about keto mug cakes before. I used an Erythritol/Monkfruit sweetener.
I added a tbsp of Splenda to the recipe, It made it nice and sweet. Slenda isnt great as a sweetener to use frequently but I have found that a small amount doesn't have any effect on my ketone levels.
Linda
I was so excited to surprise my husband with this mug cake. Instead of buying a coconut flour and an almond flour I bought 2 coconut flour. Can you use coconut flour to make this recipe?
Kim
Yes, Linda. In one of the comments I shared how to use the coconut but there are a lot of comments. It took me several times to get the right amount. I don't have the time to look for it now, we have family plans today, but will look for it sometime this week. I hope you find it soon. -Kim
Lisa
Three times I've attempted to make chocolate cake, (though not mug cake) and its ended terribly. Thanks to your note concerning stevia bitter reaction with the chocolate I now know how to fix this. Thank you do much! Oh and I really wanted chocolate cake today so I'll try that mug cake recipe for sure!
Alyssa
This is really a gem! I’ve tried many, and had one favorite, but that soon got overtook when I tried yours. I absolutely love it! Took the advice of the others and added Cake Batter Extract (1/4 Tsp) minus from the water and it tasted and felt like actually cake. You’re amazing :) If I wanted to make this vanilla cake, would I substitute the cocoa powder with another tbsp of almond flour? Thanks.
(My dad’s birthday is coming up and I was gonna use this to make him a birthday cake...but he just told me he wants a vanilla cake :P)
Alyssa
My rating teehee
Gin
Just PERFECT. I would never imagine thats it wold taste soooo delicious. Like a real cake!!!! Thank youuuu . Try it would no regret..swear
Robyn Herron
This is perfect!
Sheila
Best mug cake I have tried so far!. Followed the recipe exactly. Mine rose about 2 1/2 inches in a wide coffee mug. I may try adding a little MCT oil the next go round to try and get a little more moistness to it.
Kim
Hi Sheila, also try reducing the cooking time. -Kim
Kim
Yes, Keri. Use sour cream. It may not be as moist, you will have to see. -Kim
Kim
I use fatsecret.com and enter all of the ingredient weights by grams. Fatsecret.com has a wonderful nutritional database and I feel some of the best algorithms for the calculators. -Kim
Diana
Hi! I would like to make this is bulk (dry) and measure it out serving by serving so I'm not dragging the whole kitchen out for a mug cake. :) Do you have a recipe for that?
Kim
I used to, Diana, but they were never visited. I suggest you prepare one serving of the dry ingredients and put it in a bowl, then multiply the recipe by 4 or whatever you want. Next, measure the single single serving by tablespoons and see how much it is. This will be the amount you measure from your bulk mix when you want to make one. -Kim
Tracey Paad
I just get everything out and make several baggies of the dry ingredients. Snack size ziplocks work. I made 6 tonight. Just put the mix in your mug and add the wet ingredients when you want a treat seemed easier than trying to figure the bulk thing out
Kim
Great idea! I have small wide-mouth mason jars that I fill individually. Then I grab one from the pantry and make a cake. They are so cute! -Kim
Beth
This was amazingly good!! Great I should say. I used McCormick cake batter extract only 1/8 tsp and used a few Lily’s chocolate chips. I couldn’t imagine that it would be done in 50 seconds, but it definitely was. Will def use this as a go to dessert recipe. Very cake-like in texture. Impressed! Thank you!
Maria Sanders
So...my sugar craving just hit me about 5 minutes ago!!! I looked up recipes for Keto Chocolate Mug Cake and BAM! A blessing fell straight into my mug! Loved it!! I added coconut and chocolate chips in mines! Mind blown! Thank you!
Mary Mastelotto
Simple and delicious! Made one with Lily’s SF Chocolate Chips and the other with SF Torani Salted Caramel syrup- loved both!
Tiffany
Wow was not expecting this to be as delicious as it is!! Texture is perfect! I used sour cream, monkfruit and added some chocolate chips on top. Sooo goood. Thank you!
gjeanieg
Thank you for this, Kim! I have tried a lot of mug cakes in my three years of keto but this one is superior! We took the whole egg, beat it with a fork, and made two mug cakes at the same time. :-) I poked some walnut halves in mine. It was great! It is hard to believe that this recipe can be so simple and yet so delicious! Thanks again!
Elizabeth Blane
Excellent, but it needs more baking powder, maybe twice as much, to rise better.
Kim
Sure, you can do that! Just remember that 1 tsp of baking powder has 1.3g carbs and to count the extra carbs. -Kim
Ashley B
Oh my goodness. I can't tell you how many keto mug cake recipes I've tried. I'll never have to look for a good one again because this is top notch! I ended up putting a tbsp of crunchy peanutbutter in the middle and sprinkles a tbsp of lily's chocolate chips throughout and on top. It was the best and actually tasted like a real dessert! Mostly all of the other ones I've tried have been grainy or just bitter. Like I said, this is perfect! Keep up the great recipes. :)
Carla Chapman
I tried this recently and it was really good! Moist and delicious, it really satisfied my chocolate craving.
Thanks for the yummy recipes!
Amirah
I loved the taste of the ingredients when they all came together , my only challenge is that it didn't really turn into a smooth batter it was dry , i tried adding a little milk then stopped so I wouldn't ruin it . The taste was great but was more of a mid cake it didn't hold together. How can i avoid this next time?
Kim
Hi Amerah. I can only think that the cocoa powder was compacted so the measurement was much more than it should have been. I always sift my cocoa powder when I bring it home from the store. I also whisk my nut flours to break up lumps and fluff them up by measuring. The batter should not be dry at all. -Kim
Leah
I’ve had this a dozen times but I prefer it without the cocoa powder. I add strawberries or blueberries with vanilla extract and cinnamon. I also make my own Keto whipped cream and top it with a few more strawberries and pecans. PERFECTION.
This is my go-to for Keto mug cake! I love your Keto recipes!
Terry Darby
Best keto mug cake! I’ve tried many recipes and yours beat them all. Started keto 2 months ago and didn’t have big cravings for sweets very much. But tonight I really wanted a chocolate something, besides a fat bomb. I used swerve and it tasted great. I did drizzle it with a bit of Walden’s SF pancake syrup to kick it up a notch. 0 carb/0 calories. Awesome! I also put a tsp of softened cream cheese on top before cooking. It was so moist and fluffy and delicious. Thank you very very much for sharing your recipe and perfecting it!
Julianne
OMG this is amazing!! I’ve recently been trying to clean up my diet, but have been craving chocolate cake and brownies like crazy! My mom is into Keto so I decided to look at some Keto sweet treats. I’m SO glad I found this recipe! I stayed true to the recipe but used vegan mayo because it’s the only kind I have on hand. This is officially a staple for me. Thank you!
Krystin Sawyer
OMG! This is by far the best low-carb mug cake I have tried, and let me tell you I have tried a lot and nearly gagged each time. This cake, on the other hand, is moist, light, fluffy, flavorful. I subbed 2 teaspoons of coconut flour for the 2 tablespoons of almond flour and this turned out perfect.
Brianna
Great mug cake. But I am curious to know why when I enter it into my fitness pal the macros are way off? I used truvia and I’m wondering if I did not subtract sugar alcohols ?
Kim
Hi Brianna, if I counted all the comments about MyFitness Pal being way off I bet I would have hundreds. I prefer to use Fatsecret.com. I bet MFP isn't subtracting sugar alcohols, but I'm sure that isn't the only problem you are having. I should probably write an article about it and link it to every recipe. I enter all of my ingredients as raw weights because the nutritional information in choosing 1 serving of almond flour or 3 servings of almond flour is going to be very different than adding the actual weight used. Also be careful choosing which mayo, cream cheese, or sour cream when calculating nutritional info because some brands add sugar! I really love Fatsecret and think it has the most comprehensive and accurate nutritional counts around. I love their food journal and fitness journals and I have hundreds of recipes saved (that's where I calculate my nutritional values currently, previously or older recipes I used the Mastercook program) in the cookbook section. I hope this helps. -Kim
Suzy
Love this decadent chocolate mug cake. I do add some Lilly’s chocolate chips, a splash of expression powder and top it with heavy cream before eating. Wow! Thank you for sharing!
Zac Stefun
My wife and I were looking for something to hit our desire for something sweet and this was the first recipe that looked good when I googled "keto mug cake". Saw the stevia note (we're using Pyure) so modified the recipe and put in 1tsp on the first attempt. Still needed a bit more so second attempt upped it to 1 1/2 tsp.
Also added 1tsp sugar-free peppermint syrup. Very subtle peppermint flavor. Also put a paper towel over the mug on the second attempt after the first one popped all over my microwave. LOL!
Two thumbs up!
Rachel
I only had Stevia so that’s what I used and I’m sorry but it was terrible. Could it have been the Stevia?
Kim
It was the stevia, Rachel. The bitter compounds in the chocolate and the bitter compounds in the stevia have a synergistic effect! Yikes. I imagine it was very bitter. I have added this info to the I hope this helps. After trying it again, if you don't like the mayo, try sour cream as a substitute. -Kim
Debra Papworth
Love this recipe, quick, easy and delicious.
Jeremy Chan
How come mine didn't rise? Bit still tasted great though.
Maureen
Not bad,a little dry,but still good. I used 1 tsp coconut sugar 4 carbs per serving,and you guy can spray the mug with no stick spray before adding the batter,I might use a bit more water.
Kim
Hi Maureen. It shouldn't be dry. Try cooking it less. You probably have a more powerful microwave than I. -Kim
Sandra Jackson
Awesome treat- adds calories & doesn’t push your carbs over your daily limit! Thank you for a delicious treat!!
sonya sharp
OMG OMG OMG!!!! I'm real new to Keto and was wanting something sweet. This was so easy, and tasted WONDERFUL! Thank you for making it available.
L
I don't like mayo,so I replaced with 1 tablespoon of Greek yogurt. And instead of water, I added 1.5 tsp of espresso. Great mugcake, thanks for the recipe!
Michelle
I used the sour cream recommendation. So good!!!
Michele
I have been having a chocolate craving and this did the trick! I felt like I was cheating! It is a wonderful recipe! I added some Lily's dark chocolate chips on the top before microwaving and then also had some whipped cream too! It was exactly what I needed! Thank you for sharing this amazing recipe!
Suzanne Lanoue
Definitely the best mug cake recipe I've tried...so moist! I used light mayo because that's what we had, and Splenda for the sweetener. It isn't terribly sweet, even though I used 2 T. Splenda instead of 1, so I think I will add more next time. The suggestions are great, too. I will be making it again! I made a wonderful buttercream frosting that I ate with it.
Maggie McDonald
I tried this and it was fabulous. However I found 1teaspoon of water insufficient so I added a Tablespoon instead. I also put two pieces of dark chocolate in the batter. The cake was light and I added some bottled cherries and whipped cream. Will make again. So easy and yummyt.
Robin
I really love this and can't wait to try different variations. Question - how do you remove it cleanly out of the jar after it's cooked?
Kim
I'm glad you like it Robin. I don't. I use a spoon and dig right in. Using a greased ramekin would make it easier to remove. Run a knife around the edge, place a plate over the top and invert. You may need to tap the ramekin onto the plate or give it a little shake to help dislodge it. -Kim
Sheila Diuguid
Yum yum yum! I took your suggestion and added for large blackberries. I also topped it with sugar free whipped cream! Triple yum!
M
Ugh...smelled and tasted like mayonnaise 🤢
Kim
Yeah, some brands have a stronger vinegar recipe than others. Try using sour cream next time. -Kim
Christine
We make our own, which probably helped a lot with that issue. One cup of light olive oil and one egg with an immersion blender. It’s delicious!
Erin
Thank you! Just what I needed to deal with my chocolate cravings, and had all the ingredients handy. Simple, easy and delicious. This recipe is a keeper!
Lisa
This recipe calls for 1 TBSP Sukrin, which has 12 g carbs. So how did you come up with 7 g for the whole recipe, if the sweetener alone has 12 grams?
Kim
I know it can be confusing, Lisa. Erythritol is a sugar alcohol which contributes zero calories and passes through the body unchanged as our bodies can not digest it. It does not spike blood sugar. Because it is a sugar alcohol, nutritional labels have to list carbs even though our bodies can't digest it. There really aren't any carbs in it. Convention is to ignore the carb counts in erythritol based sweeteners UNLESS the sweetener also includes sugar. Here some "safe" low carb sugar substitutes:
Sukrin: erythritol and stevia
Swerve: erythritol and sweet fiber
Lakanto: erythritol and monkfruit
Xylitol, another sugar alcohol is fine in moderation, but can spike blood sugar in some individuals as it is digested by the body. Avoid sugar alcohols like maltitol and sorbitol. Both cause blood sugar spikes and overconsumption will cause abdominal cramping. They are cheap and often used in store bought sugar-free and diabetic candies and products.
Here is an article in which I talk about low carb sugar alternatives: https://www.lowcarbmaven.com/best-low-carb-sweeteners/
I hope this helps. -Kim
Kirsty Gamage
I was very sceptical about adding mayonnaise, but decided to go ahead based on the reviews....and yes this mug cake was delicious! This will definitely be made again and again! Now to try it out on the children 🤞🏻
Amy
So easy and delicious!
Christine
Wow this was so simple to make and delicious!! I like that it makes a small portion rather than a full cake. THAnks so much for a fast and simple way to make a treat .
Monika
So yummy absolutely delicious
Season Trowbridge
Absolutely delicious!! I thought I might need to whip up some heavy cream as my icing but no need! It was perfect without! So surprisingly moist!I It’s the best Keto mug cake yet! Thank you!!
Nina Wichman
This actually had the texture of CAKE! Wow...what a great trick to use mayo. This is a keeper!
Marlene Fernhout
Made this for dessert for dinner. I did not make any changes to the recipe. Once the cake was made I whipped a little cream with Swerve icing sugar and a touch of cocoa. I shared this with my non Keto husband who loved it. This is delicious and will be made again and again. Thanks for all the work you do to figure out these recipes and thanks for sharing.
molly
THIS is the best keto choc cake in a mug recipe! It's moist... full of chocolate flavor (fyi - i used 1 tsp espresso coffee instead of the water to really bring out the depth of the chocolate). And in my microwave it went... perfectly done in 50 seconds... and it was so moist. I now need to figure out how to make these ingredients work for a regular sized cake - unless you know??
Danielle
Amazing!!!
Alissa
Never made any low carb desserts and never thought I would. This was the first recipe that looked like it could actually work (just egg yolk and mayo).
Love it. Will be my go to baseline recipe to play around with for alterations.
P.S. Added some cut up low carb chocolate w/ almonds to make it extra appealing.
Emma
Thank you, thank you!!! Because of this recipe, I was able to stay on plan. I was nervous about trying a chocolate "mug cake" let alone a keto mug cake and I was amazed how delicious it turned out! I added a tsp heavy cream and splash of vanilla flavoring and it was sooo good. I can't wait to try it with berries. Thank you again for this recipe!
Wendy
I just made it in the toaster over. It came out great. Best mug cake I've had. I used swerve and added a few chocolate chips on top. It's probably not as moist as in the microwave, but it was still great. It took about 15 min at 325 in a small Mason jar.
Shannon Murphy
There are a lot of mug cake recipes going around, but this is definately the best! Well worth the slight effort of separating an egg! It's moist but not dense, and perfectly chocolately and sweet! I topped with walnuts and cream for a heavenly late night snack attack.
Wanda
This was excellent! This will be my go to when I need a chocolate cake fix. Thank you!
Melinda
Thank you for such a wonderful recipe! None of the keto mug cake recipes I’ve tried ever tasted this good, nor had such a beautiful texture to them. Appreciate the time you took to figure this out for us!!!
Susan
Soooo good after a full week of being on the KETO diet. I’ll be making this again for that night time chocolate craving.
Gail McConnell
I made this cake tonight and it was fabulous. Next time I will add some walnuts to it and it will be just like a cake brownie. It was very easy to make.
Ma
Really good! Best mug cake recipe yet!!!
Debbie Gillispie
I just made this mug bread but added 3 chopped walnuts to it and frozen cool whip on top and this is beyond a shadow of a doubt the best recipe out there!!! Soooooo yummy!! thank you for taking the time to perfect this recipe....its sooo light and airy not like others...this is a keeper my new found friend!!
Asia
This is the best Keto chocolate mug cake ever. I’ve tried other recipes and they were very dry. This was very moist. I didn’t have mayo on hand. So I subbed the 1tbsp of Mayo for 1 tbsp of olive oil and also added vanilla extract and Lilly’s chocolate chips for an extra chocolaty flavor. 🍫
Ereeka Ortega
Can i use coconut flour instead of almond?
Kim
Yes, I posted the recipe in one of the comments and can't find it just now. It was something like 1 tbsp of coconut flour. -Kim
Ereeka Ortega
I’m trying this tonight with my 7 year old daughter. She loves sweets!!! Hope this meets her standards!!!
Sheila
This is the third keto mug cake recipe that i tried. This is my favorite. This one tastes the best. It was moist and did not taste bitter. I used the ingredients exactly as written. This is my new go to snack or dessert. Next time, I might top off with a heavy whipped cream as a little extra treat. Very glad that I found this recipe. Thank you.
Type 1 mom
How is the carb count 7g when the Surkin:1 has 8 g per every 2 tsp? Can you sub the surkin for something else?
Kim
That's a great question. Erythritol based sweeteners will show carbs. However, erythritol is not digested by the body and it passes through the body chemically unchanged. I always count erythritol as zero carbs. Stevia is zero carbs as well. Yes, you can use Lakanto or Swerve as well. Enjoy the recipe. -Kim
Tianna Baez
This was perfection! so yummy!
DJ
This cake is so moist and delicious. I have tried other recipes for mugcakes but I prefer my cakes a little denser than what those have given, and this one hit the spot.
Jenni
Delicious! I have tried several different mug cake and this has been the best. I did shift all dry ingredients and that made it good and easy. I will have this again soon. Thank you for sharing. I will try other recipes too.
Lindsey
Dear Kim, I think I love you. I added a block of 90% choco, but I dont suggest it. The cake is better without. Sooo easy! I used the "pure" sugar alt and it turned out marvelously.
Thanks again!
Barb
This mug cake is superior, really good! I like it so much I would like to make it as an oven baked full size cake to serve company. Have you tried coverting the recipe to make a large cake in the oven? Thanks in advance
Kim
Hi Barb. I haven't tried converting this over yet. -Kim
Melinda
I CONCUR! I would LOVE a full-size cake recipe!
Suzanne
Yum...didn't have mayo, so used melted butter. Added a few drops of orange extract. My first mug cake, but certainly not my last.
AnnLiz
Wow.. I am incredibly amazed by this cake!! It's just perfect.. Thank you for the recipe.. <3
Marylou
What if you don’t have a microwave oven? Can you use a toaster oven or conventional oven?If so at what degrees and how long?
Kim
Marylou. You can try a toaster oven. I would try baking at 325. You would have to watch them. I don't know if they would be dry or not. -Kim
Michelle
Looks delish! Quick question, can I use Stevia instead of Sukrin? Cannot seem to find that near me.
Kim
Hi Michelle. I wouldn't use all stevia or the cake will be bitter. Just use any erythritol based sweetener like Sukrin, Swerve, or Lakanto. -Kim
Brend L
Good after-dinner snack. No funky aftertaste. Would be great with a few chocolate chips and chopped walnuts. Thanks!
Faith
It was so easyto do and delicious! Thanks!
Kate
Can I use sour cream instead of mayonnaise?
Thanks
Kim
Sure, Kate. Give it a try. -Kim
Amanda Schaefer
Hi Kim, I made this last night for dessert/bedtime snack. Spot on!!! it was wonderful! Thank you so much for perfecting and providing this recipe. Much appreciated!
Kim
Absolutely delicious!! My first keto mug cake and I doubt I'll even bother with any other recipes. Tasted just like real cake! Topped mine with a sliced strawberry and about a TBS of heavy cream. Heavenly! Thank you for sharing.
Anna
I cannot wait to try this recipe after reading all of the reviews! However, I cannot get erythritol. What else can I use in it's place?
Kim
Hi Anna. I'm not sure where you are from, but I may be able to suggest some brands that are erythritol blends. Can you use xylitol? Use a half as much MORE if using xylitol. Let me know if I can help you further. -Kim
Ginette
So use the egg white only and not the yolk? Or the entire egg? Ginette
Kim
HI Ginette. I didn't try to make it confusing, but somehow have. The recipes calls for 1 egg yolk, but if you don't know what to do with that extra white, you can make another mug cake with the white. The texture will be a little different, but it still works. -Kim
Melissa
This is by far my favorite and the only keto mug cake I make now. It has the best texture and is perfect moist. I add 1/2 tsp of instant espresso powder. It really brings out the chocolate flavor.
Nat G
Just made this and ouuuuu i just had a taste of haven!! Thank you so much xx
Jen
Could you make this in the oven as well? I don't have a microwave:(
Kim
Hi Jen. Yes you could...... but it is a pretty small serving. I think it would be better in a toaster over and I don't know if it would dry out in a regular oven or not. I would turn the oven down to 325 and watch to make sure that the cake doesn't get overdone. -Kim
Selina
This is hands down the best keto mug cake I've tried. Thank you for sharing!
Susan J Tyler
I made this but I added peanut butter and chocolate chips in the middle of the cake...Delicious! Thanks for sharing this recipe Kim.
Wanda Zawadzki
I made this and used erythritol. It was definitely not sweet enough. How many tbsp of erythritol would be equivalent to what you used??
Kim
If you used regular erythritol, Wanda, you may want to try 3 - 3 1/2 tbsp erythritol since it is only 65-70 % as sweet as sugar. -Kim
Aly
I tried it with 1.5 tbsp of Erythritol and it was really sweet that way. Next time I’ll try less.
Jennifer
I cannot even believe how good this is. It’s mg valentine dessert and the only thing that kept me from cheating today! I made strawberry cream cheese “frosting” for mine- Dab of cream cheese, pyure, and a teensy bit of strawberry purée. Perfect!! Thank you SO much for this recipe!
Phyllis Havens
Could I use Stevia (drops or powder) instead of swerve?
Trying this tonight for Valentines dessert:)
Thanks!
Kim
Sure Phyllis, but be careful. Stevia and chocolate don't play nice together. Stevia contains bitter flavor compounds and so does chocolate. They bring out the bitter compounds in each other. Happy Valentine's Day. -Kim
Phyllis Havens
Thanks so much for the info. THIs is my first Keto dessert so that’s good to know. Do you recommend anything else?
Kim
Not really, Phyllis. Just make sure that your cocoa powder has been sifted before you measure so you don't end up using more than what was intended. Also, microwaves have different strengths, so the first may need more or considerably less time depending on how strong yours is. Enjoy. -Kim
Kim
What about powdered swerve?
Kim
Sure! -Kim
Lana Rupnow
What kind of mayo do you use?
Kim
Hi Lana. I've used both homemade and store bought like Helmans or Dukes. -Kim
Lynda Adams
Hello,
I was craving chocolate and tried this recipe tonight. It was great! Thanks for sharing it!
Tammy
I have been dying for cake while on Keto and ran across this recipe. I was skeptical with the addition of mayo but I have to say I am pleasantly surprised how good this cake was. I added some sugar free chocolate chips and it was just the thing to take away the craving I have been having. Thank you for posting this. I know I will be making it again and maybe doing the whipped cream and berries next time.
Danielle Derrig
I was a little unsure about mayonnaise but found it to be perfect and undetectable when eating. I added some coconut milk on top with shredded coconut. It was a great dessert!
Susan
A++ Moist, yummy and everything I've been looking for in a sweet Keto friendly treat! Only downside is that I am maxed out on my carbs for the day so will have to wait until tomorrow for another one LOL.
Thank you for such a wonderful recipe! Can't wait to try some of your other recipes
Kristin
This mug cake is ridiculous. Seriously, I am totally and completely addicted to making this. Thank you SO much for this recipe! My only question is....do you have a recipe for this in a normal sized cake?
Kim
I've been playing with a microwave version of a full sized cake, but I haven't perfected it yet. There is also so much variability with microwave strength that I'm not sure it would work for everyone. Lol. Thanks for the nice compliment, Kristin. I'm glad you like it. -Kim
Michelle
This is so good. Added a few chocolate chips and strawberries! Definitely helps with my chocolate obsession.
Kim
Yummy! This is going to be my go to for chocolate fix. Thank you
Christina
I just made this for my husband and myself. I put a piece of dark chocolate in the centers and on the top. I forgot to let the batter set for a minute or two, but I did sift the chocolate powder and mash the almond lumps.
Our cake was a little bit soggy on the edges and I nuked the pair together for 60 seconds. We ate them warm and a little bit soft and enjoyed them very much. We decided we might prefer them warm and soft with melted dark chocolate for the icing.
Thank you for the recipe; we will be having this dessert frequently.
April
I thought this was going to be like all the other keto mug cakes I’ve made. And I saw ‘mayo’ and I’m like, nope. But II followed the recipe and I’m so glad I did. It was perfect!!! I’m so glad I found this. I’m definitelt saving it for next time!
Lady Tra
I absolutely love this cake. Thank you so much for sharing!
Katie R
You are a goddess. This recipe is THE BEST. I added a few Lily's chocolate chips for a tiny chocolate boost and just...WOW. Thank you soooo much for this!
Cherie Sousa
Yum! This was the most like real cake of all the keto mug cakes I've tried. I added one tsp of PB2 to make a peanut butter/ choc cake and added a TBS of water. Thanks!
Emily
This was amazing! Best low carb treat yet!
Kristin
This is amazing! Perfect consistency, flavour and amount! Thank you!!!
Can't believe this is a guilt free keto treat!
Brandy Lynch
Woooow.... This was the best mug cake and I've tried 3. I may have been a little over in the dry ingredients which is probably why the mix was super thick. I added a touch of vanilla extract and half a teaspoon of sour cream to make the mix a tad thinner... It worked and it was the best tasted just like chocolate cake. I added some crushed walnuts and some of my keto cream cheese frosting. I will be making this every time I get a craving for chocolate cake.
Laura
This was soooooo good - better than a lot of the regular mug cakes I have made in the past! I used Monkfruit sugar, added a 1/4 tsp of vanilla extract, and used hazelnut flower because I was out of almond flour. It still turned out perfect! Cooked for 80 seconds. I also made sour cream frosting with 1/4 C sour cream, a TBS of monkfruit sugar, and another 1/4 tsp of vanilla. Even my non-Keto hubby likes these!
Bekah
This is my FAVE keto dessert - just so delicious! The right texture and the perfect amount of sweetness. I make it all the time! ***Btw, tonight I made it with coconut flour (subbed in 1 TSP of coconut flour for the almond flour) and it came together great. I had just already had a handful of almonds today and didn't wanna go overboard with my nut intake - So happy to discover this recipe is so adaptable! Thanks!!!
Deena
I used coconut flour too. I'm completely new to it and used 1TBS happy to know I can use even less! I added some Lily's chocolate chips on top!
Danielle
Can't wait to try this! What can I use instead of the mayo? I have butter, sour cream, cream cheese, heavy cream?
Kim
Try the sour cream first, Danielle. Then you can try the heavy cream next time if it isn't as moist as you want. Remember that your microwave oven may be much more powerful than mine, so watch it to get the best time for your microwave. Enjoy! -Kim
Seewfia
Mmm, I would love to have whipped cream....however, sugar free syrup on top did the trick!! Thank you!!!!
Maddie
Why not do whipped cream? Just a little hwc with a tiny bit of vanilla. Skip the sugar!
Mark
First time making this and it was amazing. My love for chocolate cake can continue! Thanks for this wonderful recipe!
Jo
Every time I enter these ingredients in MyFitnessPal it says 18 Carbs.
Kim
MyFitnessPal counts the sugar alcohols in the erythritol (which are not digested and contribute zero calories) and also has an algorithm that comes up with an average weight for the other ingredients. I always weigh my ingredients to get the most accurate carb counts. I do not like MyFitnessPal and suggest you use Fatsecret.com. Be careful how you add and choose ingredients. -Kim
Melva
This was great!!!! First time I made it and it literally was just like chocolate cake!
Grace
Hello! This is the first time I tried to make a mug cake.
Your recipe is utterly delicious. I couldn't tell that it was low carb at all. In one word, decadent. It's even better than the cupcakes sold at grocery stores. I topped it with choczero chocolate syrup. Perfect. This will be a staple for me. Thank you so much for sharing.
Vanna
This was very good! I've made it about 4 times since discovering the recipe around Christmas time. The second time I added a little more sweetener and a few sugar-free chocolate chips, which suited my tastes more. My kids devoured it when I let them sample it, too.
Kelly
Just a big blob of dryness. Added 1 cup of milk and it made no difference. I can't choke down one bite....help
Kim
Hi Kelly. Are you sure you used almond flour? The almond flour in the US is finely ground blanched almonds. In some countries, defatted almonds are ground. That will make a difference in texture there. If you used coconut flour by mistake, it would be dry. If your cocoa was compacted from the grocery store, you may have accidentally used up to twice the amount specified in the recipe. Cocoa powder is another ingredient that can make baked goods very dry if more is used. So, make sure you are using blanched ground almonds that have not been defatted, sift your cocoa powder before using (I have included a tip about it in the recipe), and the third thing is your microwave may be more powerful than mine. You may only need 30-40 seconds. I hope these ideas help. -Kim
Leah
This cake is perfect! It’s moist, chocolate-y, not too sweet, and the perfect amount to eat guilt-free. THANK YOU for this! I’ve been looking for a Keto mug cake recipe that was even half this good.
TRY THIS ONE, YOU GUYS!
Shy
Y'all, this is the one! I've been keto for several months and I've had at least 8 different mug cakes. Some had good texture but left a weird bitter taste at the back of your throat! Some had crap texture and flavor. This one is awesome! It could be a tiny touch sweeter for my taste so I topped with whipped cream. I'll make this again and again!!! For fun I put a small spoon of natural PB in the center!
Caroline Adele
I just wanted to say thankyou so much as this was one of the most delicious low carb recipes I have ever made, INCREDIBLE ❤️
Quick, east, delicious
I am very new to keto and this is the first keto cake I've made and it was easy, quick, and delicious!
Louise Gentry
I started Keto a week ago today. This is the first time I’ve had a chocolate craving. This totally fit the bill! Perfect.
Jacqueline
Wow! This is probably the best taste and texture mug cake I’ve had....
Carol Cote
This keto Mug Cake is heavenly. Don't look any further. Keep up the great recipes...
Ruth
I have used the recipe several times and just love it. I have given it to some of my co-workers as well, it has saved them doing Keto and missing their sweets. I would be interested to know how much you put in a jar. I would love to get these as Christmas gifts. Thank you for all you do
Kim
Hi Ruth. I am glad you like the recipe! I would line up the jars and as if in an assembly line, add the ingredients. -Kim
Megha
Hi! I absolutely love this recipe! My question is that I really want to make this is a “cake” in a transitional
Oven for an upcoming holiday party. Is this possible? And if yes what timings and temperature do you recommend? My favorite thing about this cake is the texture and how moist it is!
Kim
Hi Megha, the texture comes from the microwave. Although I haven't tried baking it in the oven, yet, I have tried baking a larger batch of the batter in a 6" silicone cake pan in the microwave. Let's just say that I don't have the timing and temperature down yet! -Kim
Megha
I tried the pan in the microwave- it was great! I had to cook for 3 mins with 30 s intervals towards the end because I was so scared of it bursting. It tasted great! Thanks!
Kim
I'm great to heat it, Megha. Did you use a class pan or a silicone pan? -Kim
Carmen
This recipe is heavenly! Saves my sweet tooth! Love the fact that it’s not eggy tasting . Thank you!
Carin M. Richardson
What happens if youi use the whole egg?
Kim
Great question, Carin. I think the texture is nasty with a whole egg. It is tough and eggy. Give it a try and see what you think. -Kim
Stephanie
I had a terrible craving and made this delicious mug cake. Made 2, one with egg white, one with egg yolk. Both of them equally good just a different texture. I immediately texted my sister the recipe and she made it! We all love it. I want to add nuts next time if my macros allow and sprinkle some swerve over it. Love love love it. Thank you!
Kim
Hiya, didn't have any mayonnaise so exchanged it for muscaponi cheese. same volume.Blooming lovely with summer fruit and cream. Loved it thank you!
Linda Ramirez-Weahkee
Wow! By far my FAVORITE recipe!
Danny
I accidentally used coconut flour (made some mug bread and I guess I still had coconut flour on my mind) and the texture wasn't there but the flavor was amazing. Obviously it would have been completely different if I made it correctly so I can already tell this is going to be made a lot. And because I can NEVER eat plain cake (and let's face it...I used coconut flour so it was super dry) I mixed some heavy cream with lakanto and cocoa powder And made a chocolate whipped cream.
As did as it was when I made it wrong, I can't wait to try it again and make it the right way.
Barrie P
Living in the south mayo is used in cakes and keeps it moist. It did that in this mug cake too. I added chocolate chips and vanilla instead of water.
Nancy
I just made this for my husband and myself.....amazing!
Megha
this was amazing! i am new to keto and could not have gotten through Halloween without this! thank you so much!
Melody
Ok so I read a lot of really good reviews. I’m I the only one to say it? Yes you need another good review! This is amazing! You are amazing! Thanks so much for making me a believer of mug cakes again.
Kim
Lol. Thank, Melody! -Kim
Cassie
You guys, when I say this is the best mug cake I’ve ever tried, I MEAN IT!!!! Keto AND non Keto. Not only is is it moist and delicious but it also tastes just like real chocolate cake!!! TRY THIS!!!!!
Raquel
Loved this. I completely forgot the baking powder and it really didn't seem to matter, lol. Thank you!
T.G.
Thanks for this! I really enjoyed it. Added a few drops of vanilla flavored stevia drops. Soooo yummy.
Kenz
I love the texture! I would switch out some of the Mayo for butter and some heavy cream instead of the water.
Jan
This was the best tasting and best textured mug cake ever!!
I am going to make up several batches of the dry ingredients to have ready.
Jen
Delish and moist. best mug cake I've ever had
KO
EXCELLENT!! Thanks for the yummy and yummy easy recipe!
Penny Johnson
Just made this with cinnamon, as suggested in another review, because I didn’t have cocoa powder. Best mug cake ever! I drizzled with melted peanut butter & whipped cream. I will definitely make again!
L Dooley
Kim, you are a genius! I have tried so many mug cake recipes and this one is by far the best. I am now experimenting with other variations and they are coming out great - today I made pumpkin cake: replaced the cocoa powder with 1 tablespoon pumpkin puree and sprinkled some pumpkin spice. I also made cinnamon bun style: replaced the cocoa powder with 1 teaspoon cinnamon and topped with cream cheese, more cinnamon, and swerve. Thank you so much for this wonderful recipe Kim! I can't wait to try everything else on your website.
Kim
Yay! You've given me ideas for future posts - they sound so good! I'm so glad you are happy with the recipe. Thanks for taking the time for leaving your recipe ideas, people will love them! Have a great day. -Kim
Karen
Tried this exact recipe twice- first time using coconut flour and the second time using flax meal. Both came out crumbly messes that didn’t resemble or taste like a cake. Is there no substitute for almond flour? I’m allergic!
Kim
Hi Karen. Unfortunately, you can't sub coconut flour or flax meal 1:1 for almond flour because they are too absorbent. Try this: 1 tbsp coconut flour, 1 tbsp sifted cocoa powder, 1 tbsp sweetener (like Sukrin or Swerve granulated), 1 tbsp mayonnaise, 1 tbsp oil, 1 egg yolk and 1/8 tsp baking powder. I think you will have better luck. -Kim
Susan
Try tigernut flour - it's a tuber, not a nut, but it has a nutty flavour and is a 1:1 sub for almond flour!
MissyB
Hey Karen! I have subbed macadamia nut flour for almond with pretty good results. I found it at Grocery Outlet, but they have it online, too!
Kristina
I usually double the recipe, and recently experimented with adding 1/8th tsp of cake batter McCormick extract. Made a great thing, even better! Topped with some heavy cream, or whipped cream, it tastes like a cupcake!
Kim
I can't wait to try that Kristina! Thanks for the tip. -Kim
Laura Jones
This recipe is awesome!
Ana
I have erythritol and Monk Fruit (2:1 sugar). Which one should I use and how much? thank you
Kim
You could use either, Ana. Plain erythritol will be less sweet as it's 70% as sweet as sugar, while your monkfruit is twice as much. Experiment and see which one you like best. -Kim
Deborah T Walters
I made this a couple of weeks ago according to the recipe and it was delicious!
I just made it again and decided, why not just use one whole egg and double the rest of the ingredients and make two mug cakes.
I honestly could not tell the difference! Problem solved with wondering what to do with the white.
Brittany
This was so good! I subbed the mayo for melted butter and used heavy cream instead of water. I added in sf chocolate chips and the texture was just like real cake! Soooo good. I did add the tiniest pinch of salt but next time will leave it out altogether!
Sue
I don't even eat chocolate cake but this is delicious! I also changed out the Mayo for sour cream and hwc for the water. I also did 45 seconds and it was perfect. Had it tonight with ½ cup of PB chocolate chip Enlightened ice cream. My tummy is happy. My once a week treat from now on!
Margaret Ash
Wow just loved them. It satisfied my sweet tooth
Karen
I used the whole egg made no difference
Yazmin
Omg! You’ve done it again! This tastes just so amazing! I have to admit that the mayo really freaked me out at first and I was pretty tentative about taking that first bite because of it, but I certainly wolfed down the cake after the first bite! I don’t know how you do it but you’re a genius with low carb goodies. Thank you so much. Loved this. I’m going to try variations with essence of orange and maybe a peanut butter version soon too.
Irene
Every time I try a mug cake it fails. it is so-o-o-o dry I choke on it. Any ideas out there?
Kim
Was this one dry Irene? Did you make it with the egg yolk and mayonnaise? That is the best combination. This mug cake is super moist. The only thing I can think of is that you have a powerful microwave and that you don't need as much cooking time. Also, I am using pretty small ramekins, jars, and cappuccino cups to make mine. Also, if you are using whole almond flour (with bits of the almond skin) opposed to blanched finely ground almond flour, there may be a difference in texture. I hope this helps. -Kim
Robin
Mine was dry too. Probably right about my microwave being too strong. I’ll try shortening the time, thank you!
Kim
Yes, Robin. As I mention in the recipe or post, every microwave is different and you may need to adjust the time. My microwave is pretty weak. The cake should be light and moist. -Kim
Sue
I did 45 seconds, try that.
KetoGal
I’ve been looking for the perfect Keto sweet treat and this was perfect. Other have been a major fail, so thanks so much for posting. Like other readers I exchanged the water for heavy whipping cream and added a tbsp of butter. This was exactly what I needed to beat the sugar craving!
Mary Tsang
This was the best microwave cake I have ever had. Thank you for posting, I just had to try it as I couldn't believe it was going to be so good.
Gina Martinez
This was so good! I added a teeny dash of salt and swerve once it was done... So. Good. I ate it standing next to the microwave, lol. It was good without either but I'm craving salty-sweet this week...if u know what I mean. I will be experimenting with toppings to switch it up. Thank you for taking the time to figure this stuff out and share it. You made my life more manageable just when my daughter's Oreos were starting to call my name.
Misty
I rarely comment on recipes but I had to give u a 10 star praise! First off, started off with your Keto Chilli dogs for dinner. Delish! I really wanted dessert but I only had 8 carbs left for the day. Low Carb maven to the rescue! I made 2 chocolate mug cakes one for me and my son and I used your recipe for sugar free cream cheese icing. I have had several mug cakes and they were horrible. Yours was like the real thing maybe even better!!! I had the one with egg whites. 4 carbs for a desert so moist and delicious, I can have ur cake every night and not feel guilty!!! Thank you 1000xs over!!!!
Maricela Verduzco
Best mug cake recipe ever. Threw a spoonful of peanut butter in the center. Delicious.
Shellie
I Use sour cream instead of mayo. I like the taste better. Thanks for the recipe!
Renae Tawney
I used Swerve and 1 tablespoon is 12 carbsThe total for this was 17.61 so I don’t know where you just get 13
Kim
Hi Renae. Since erythritol is not broken down or absorbed by the body and has zero calories, convention is to count it as zero. I use Fatsecret.com to calculate the nutritional information. Make sure to choose a mayonnaise that has zero carbs when typing in the ingredients. Also, entering the weight of the ingredients in grams always gives you a more accurate count than just using teaspoons, tablespoons, and cups. -Kim
Christy B
This is so good. I didn't have mayo, so I used softened cream cheese and it turned out great. I used the whole egg and I also made a frosting out of cream cheese, swerve, cocoa powder and a little vanilla.
Lauraline
Amazing!!!!! I used heavy shipping instead of water. Was so yummy! Sprinkled powdered swerve on top. First microwave recipe i have thought was any good. Most turn out dry or crumbly or just nasty. I highly recommend this one!
Wayne Schuyler
I love this recipe! Tonight I added 1 tablespoon of sour cream to it, and it came out super moist. Thanks for posting it.
Donna
OMG! This is so good! If you are on Keto you will love this! You will love this even if you are not on Keto! This is so easy & good! 5-Stars! No 10-Stars! Cause it’s so good! yummy yummy ! Donaa
Mai linn Moen
Mine turned out really bitter. Could it be my cocoa powder or should it taste like this?
Kim
Hi Mai Linn. Did you use stevia to sweeten? Stevia and chocolate bring out bitter compounds in each other. Is this what happened? -Kim
Olivia
This was so great. The mayo really helped keep it moist. Will definitely be making this again.
Ash
Absolutely delighted with the results of this recipe. My first mug cake ever and esp being on the keto diet, it's amazing! Thank you!
Emma
it was my first time making a mug cake and this was a huge success! I’m already thinking of all the possibilities with it. thank you!
Charlotte
Wow this is good! I was somewhat skeptical after trying multiple mug cake recipes and ending up with an eggy, crumbly mess but this was perfection. It’s moist, chocolatey, and doesn’t taste like egg. (I used egg white instead of egg yolk.) I’m now going to try more of your recipes!
Kayla
I love this evening quickie! I mixed it up w/o the egg white then decided to stir it in. I think i like it better with the white! I also like adding a pat of butter on top when it's finished! Love the mayo touch.
Amber
Okay, I tried it again with the egg yolk, and in stead of the tbsp of mayo (the last one tasted like mayo was the only ingredient), I did a tsp of mayo and half a tbsp of avocado oil and WOW!!!! 100% recommend trying it with the avocado oil!!! YUM!
Jessica Rojas
I don't usually comment on recipes but this mug cake is Amazing! like many, I have tried several mug cakes and they always end up being grainy or bitter. This one is absolutely perfection!!!
Only 3Ncarbs, gives me the chance to double up and not feel guilty about it.
Thank you
Crystal
I have made a few mug cakes and they all suck but WOW THIS WAS AWESOME.
Thank for this one. I added SF chocolate chips on top and a bit of sweetened cream cheese.
Amber
I would love for this to be my go-to recipe for a quick sweet treat, but do you have any suggestions for an alternative for the egg yolk/whites?
Kim
Hi Amber. I tried to make it without an egg and it didn't work out. Do you use egg replacer? I don't have any. It may work? I'm trying to remember my vegetarian days.... maybe 1 tbsp of mashed up silken tofu would work? I really don't know. Please let me know if you try one of these or have another idea that works. I would love to be able to add a note to the recipe for egg-free folks. -Kim
Amber
I tried substituting the yolk for just egg whites & it was no good. That’s why I was trying to experiment with the avocado oil (see above)
Kim
Some mayo brands have a more pronounced vinegar flavor than others. I love avocado oil. Others have tried using sour cream instead of mayo. -Kim
Hempress Angell
It's possible that silken tofu, or 1/2 a flax or chia egg (1tbsp of the seeds in 2tbsps of hot water) might save the day on this one, you may need to experiment with adding a tiny bit of oil, and try subbing sour cream for mayo if It's because of an allergy to eggs :) I haven't tried with tofu before, but the flax egg worked pretty well in a plant-based version I made some time ago (using flax egg, aquafaba mayo and coconut oil.... granted it was the 1st time I rocked this recipe, so didn't have much to compare to. I'll be making the not-so-plant-based version as part of a trifle for a v-day dessert with my lover tonight!).
Ashley
Wow! I have to admit, I’ve tried my share of mug cakes. When this one claimed to not be so spongy/eggy, I was a huge skeptic. I am a believer! Best keto mug cake I’ve ever had. This will definitely be my go to. Topped with chocolate chips and drizzled with a homemade cherry sauce...to DIE for! I’m hooked! Thank you for this recipe!!
Iolanth
This recipe is superb, thank you for sharing. Not only did it hit the spot with me, my sugar-addicted kid said it was “quite good” - that’s really high praise!! I drizzled some ChocZero sugar free syrup on top and it was just divine. Thinking about having this for breakfast tomorrow now...
John Hildebrandt
This recipe is great I added 1 teaspoon of sour cream because I felt the chocolate was a little bitter And it came out perfect
Bobby
I only had stevia so I added a little more - but this is the BRST mug cake ever! It was moist and delicious and chocolatey. It is seriously the first mug cake that actually tasted like cake - texture is spot on. Added bonus: it doesn’t stick to the mug! Well done!!
Angela
This hit the spot for my chocolate craving and I didnt have to wait 30 min for a traditional box cake.This will definitely get me over the hump during my low carb lifestyle .Thanks
Heather
This was a really satisfying chocolate cake! Thank you so much. Now I can stick to my low carb lifestyle and still have REAL chocolate cake when the craving strikes!
Brenda
This is delicious! Truly wonderful recipe! Needed a chocolate fix tonight and this fit the bill in short order. Thank you for sharing!
Tiffany
Hi! I’m so pumped to make this for my Keto hubby and my pregnant belly! However, we don’t own a microwave (obviously, I wear a tin foil hat too) but was curious what your best guess for conventional oven baking instructions might be? Thanks!!
Kim
Hi Tiffany. I might do the recipe x 6 and use 3 whole eggs and a total of 1 1/4 tsp of baking powder. Then I would put it into muffin tins and bake at 350 Funtil they looked done. You can freeze them and have them ready when your pregnant belly is craving chocolate! OR you might be able to bake 1 serving in a toaster oven! I might do that instead. In that case, I would set the temp for 325 F and bake for 10-15 minutes? -Kim
Melody
Did anyone make these cupcakes in the oven. How much time do they need?
Lisa
This was awesome! Absolutely delicious. Perfect texture and level of chocolaty goodness. Thanks!
Patty
Hi. What of I only have baking soda and not baking powder, will this work? Or what can I substitute for the baking powder? Thank you.
Kim
Try using 1/8 tsp baking soda, Patty. -Kim
Casey
This definitely felt like I was cheating! I only had olive oil mayo so decided to use sour cream instead which is something I’ve always enjoyed in cakes. I also added PB powder and because I did that, decided to add some heavy cream(maybe a tsp). It came out amazing and so fluffy. Loved that this only called for one egg yolk. I seem to find that many keto recipes(esp breads) come out tasting very eggy and I’m so glad that this did not disappoint. Will be making this for my non-keto hubby when he gets home for dessert. I’m sure he will be just as thankful as I am for the recipe!
Karen
Cake for dinner!? When not very hungry (thanks keto!), why not!? Let them eat cake, I say! My gosh this recipe is a keeper! And now I will also be checking out other recipes on your site. Thanks for sharing! Delish!!
DANIELLE V
Just wanted to say THANK YOU for this amazing recipe - so good especially with come cream! Have made it twice now - have saved me when I wanted something chocolatey!
Rain
Omg I love you! This is the first time I've ever made a "mug cake". I wasn't expecting it to be this good! Maybe I've been on keto for too long haha I don't know, I really really love this recipe. Thank you so much for sharing!
Kathy
Very tasty and moist. Melted a tsp. of butter over the top when it came out of the microwave. What a yummy treat!
Thanks for the instruction to fluff the almond flour before measuring. I have never been sure how to measure almond flour. Pack or fluff and measure? Should I be doing that for all recipes?
Kim
I'm glad you are happy with the cake, Kathy. You should fluff and measure ingredients before measuring with my recipes, for sure! I have seen enough comments on my recipes and other blogs where people mention that a recipe was dry when I know it wasn't. I think that compacted ingredients is part of the problem - especially with moisture absorbing ingredients like coconut flour, oat fiber, and cocoa powder. Of course oven differences play a part, too. -Kim
Kathy
Thanks for your quick response. I have been guilty of packing and wondering why my recipe came out dry in the past. I will fluff and measure from now on!
Love, love, love all your recipes I have tried so far. So glad I found you.
Janna
Ok this recipe is amazing. I made this last night, and we devoured it in 5 seconds. Then I made a vanilla variation using vanilla instead of water, vital wheat gluten instead of cocoa, and it was also crazy good. Woke up this morning and omitted the sweetener and it became a crazy delicious biscuit for breakfast. Mayonnaise is such a game changer! Wow!
Colleen
I just started on a LCHF diet and so far, I love the results! I purchased Splenda Naturals sweetener
packets and granulated monk fruit sweetener. Which and how much would you recommend for the mug cake recipe? Thanks in advance!
Kim
Hi Colleen, nice to meet you. What a great question. I don't really know because I have never used the products you mention. My guess is that you would use 1-2 packets (go by taste). -Kim
Kaye
Wow!!!! Oh my goodness I swear to this is absolutely the best mug cake I've eaten . Best texture my far!!! Thanks so much for sharing I've had a lot of might cakes and they all seem absolutely mediocre compared to this . You rock for coming up with this !!!
Ambre
Wow, this was just delicious. I was feeling a bit low today, I have a bad case of keto flu, and my spirits were low and I was questioning if this was a lifestyle I could live with and I found this recipe. Thank you so much. So easy, and so moist rich and the texture is spot on. Thanks again.
Kim
Oh, I'm sorry, Ambre. I'm glad the cake helped lift your spirits. Feel better soon! -Kim
Iris
Og God, this is so delicious!!! Thanksfor a great cake!!!
Anne
This was absolutely amazing!! I followed the recipe exactly and it was scrumptious! I am so happy to have found your blog, Kim! I looked at more of your recipes and I am excited to try many of them. Thank you for sharing your creations with us. I am new to Keto and really only started it to support my husband. I wasn't sure how long I could last on a low-carb diet, because I love food and I like to cook. Seeing recipes like yours with the gourmet flair combines my love of cooking with the Keto parameters. THANK YOU!!
Kim
Hello Anne! It's nice to meet you. I'm happy you like the recipe and are finding some recipes on the internet that will help you support your husband. Finding recipes for the food you like to eat is key. Thanks for introducing yourself and taking the time to comment. Have a great weekend. -Kim
Alex
I love this cake!! I used the Pamela's baking and pancake mix which is almond meal bc it was on hand. I found it very dry, so I bumped the water amount to 1 tbsp. Go figure. Now I can have fluffy chocolate cake whenever!! So happy with this recipe, Thank you!
Kim
Hi Alex. I'm glad you like the cake. I'm surprised you found it to be dry, I think it was either the mix or perhaps your microwave is much stronger than mine? In any case, I'm glad you were able to troubleshoot for your mix. Have a wonderful weekend! -Kim
Volcano Damavand
When I initially left a comment I seem to have clicked the -Notify me when new comments are added- checkbox and now whenever a commment
is added I reciege four emails with the exact same comment.
There has to be a way you aare able to remove me from that service?
Thanks a lot!
Kim
I'll look for it and delete your email, Volcano. Maybe that will do the trick. Let me know if you continue to receive them. -Kim
Kim
Did you comment under another name and email? I can't seem to find any more comments by you. If you would prefer, you can email me and I will delete your email from the original comment. Let me know. -Kim
Randy
Made this for my wife so she could enjoy her birthday while everybody else enjoyed her birthday cake.
She LOVED it! I also made a small amount of keto whipped cream to put on top. She was really, really happy!
Thanks for a great cake recipe.
Kim
Fantastic, Randy. I'm so happy she enjoyed it! Please wish her a belated Happy Birthday for me. Enjoy your day. -Kim
Lola
Loved this recipe for a quick treat. Also my littles thought it was delish as well!
Julia
Thank the heavens! Finally a yummy keto mug cake. I kissed a lot of frog mug cakes before landing here. Great recipe! Thank you.
Kim
Lol! Thanks, Julia. -Kim
Amy
This hit the spot and was truly delicious! Thank you!
Toya
This just saved me...you have no idea! Love it!
Amber
I made this on my birthday as a quick treat for myself l. I wanted to stay keto and not cheat but still have something chocolate. This was perfect. The texture was great and still very moist. I added 2 frozen strawberries before microwaving and topped with whipped cream.
Kim
Happy Belated Birthday, Amber! I'm glad you could celebrate with cake and love that you added strawberries to it. Sounds super! -Kim
Vesna
I can't believe I just ate chocolate cake while on keto and my carbs for the day are at 18g! There are really no words to describe this cake, you'll just have to make it and see for yourself. Yum
Lisa
This is tasty!! I added a dollop of sour cream to the recipe just to experiment and it came out great!!! It actually taste like cake!! I made a little chocolate rum icing to add on top, and what a treat!! This gives me my "bread" fix!!!
Kay
This recipe was excellent! I didn't get to make it with full-fat mayo so mine came out a teensy bit dry but I know it'll be perfect next time when I can do it right. I want to try sprinkling a bit of espresso powder in too and adding a dollop of whipped cream on top. Can't wait to make this again!
Marie B
Could I make this using Splenda? Thank you.. Can't wait to try this!
Kim
Yes, you can Splenda, Marie. I just want to caution you about Splenda, though. There is an erythritol based Splenda now which is a good one to use. The Splenda for Baking (the original formula) is not good to use. It is mostly maltodextrin which has a higher glycemic index than table sugar (85-105 and 68, respectively). Usually food with a high glycemic index spikes blood sugar. A Splenda packet would be better to use than Splenda for Baking as it has less maltodextrin. If you have any questions, please ask. Enjoy the cake. -Kim
Jen
This was so good! I'm trying to convince my friend that keto has great options and this helps tremendously! So easy to make and tasted like a traditional chocolate cake.
WitcheeAngel
This mug cake is beyond awesome! Soooo moist! It has become my go to mug cake when craving a little something sweet or just in the mood for something fast and easy to go with my coffee. Thank you so much for sharing the recipe....makes keto that much easier.
Erica
I just tried this recipe and the flavor was amazing!! It came out a little on the dry side and I'm pretty sure it's because I'm at high altitude. I will play with the flour to water ratio to see if that helps. (I also had to use wheat flour as I didn't have almond flour on hand. Do you think coconut flour would produce the same results as the almond flour?) Thank you for sharing. I will definitely keep trying to perfect this one!! :)
Kim
Hi Erica, I'm glad you like the recipe. It might have been dry because you used wheat flour. Almond flour is very moist. I suggest making it as written before playing with it. I have not made an all coconut flour mug cake yet, but have it on my list. Lol. Since I am at 1000 feet above sea level, I have no experience with high altitude cooking and would love to hear if you have any suggestions. Thanks for taking the time to comment. Enjoy your week. -Kim
Amber
Hi Erica, I just made this with coconut flour and it was pretty good, though a bit dry, but I suspect I let it microwave just a tad too long.
Cheryl D.
Your recipe looks like a 10-star winner to me, but there is some confusion with how part of it is written.
Question: The Recipe Notes say, in order to quadruple the recipe, to "Use 1/4 cup with 1 egg yolk and 1 tbsp of mayo to make each cake." This is REALLY confusing. Use 1/4 cup of "what". And then to use 1 egg yolk for the entire quadruple recipe? When I use the recipe converfter on the recipe itself, it quadruples everything in the recipe! So, which version would be correct?
Also, when typing this question, your website forces us to use an extremely light gray color for the VERY TEENY font that is literally nearly invisible to me, and even though I have a computer with a 27" screen, I have to really strain to see what I am currently trying to type into this site's comment window. Many of us readers, of various ages, have low vision due to various causes. This very light gray, very teeny font size, may be fine for you and others with near-perfect or perfect sight, but it is definitely EXTREMELY difficult to read and type for the rest of us.
The type you use for your entire site, as near as I've seen so far, is a medium gray, in larger type, and is easier to read, Black fonts, or darker gray fonts with just a little bit more-substantial letters, would help considerably. Could you kindly change these issues to make it SO MUCH easier for ALL of us to read your wonderful recipes? It shouldn't bother your fans who are lucky enough to have great vision; plus, I am certain that those of us with low vision issues would all be SO grateful!! :)
Kim
Hi Cheryl. I love this kind and helpful comment. I have tried to make the instructions regarding keeping the mix on hand a little more clear. I hope it reads better.
Regarding the font and color of the comment section. I see what you mean. I used to be able to change things like this, but I see my theme no longer lets me do this. I will see if I can get a professional hard code this for me. I absolutely agree that it is too small and too hard to read. I hope you have a wonderful week. -Kim
Paul Gordon
Tried this tonight after seeing the recipe earlier today. Definitely worth trying if you just have a hankering for some cake. I am more of a lazy keto guy. I typically just eat 0 carb meats, eggs, and a little cheese. Very little vegetables. This has more carbs than I am really comfortable with, but it did satisfy my sweet tooth desire, and I will definitely do it again.
Lori
My absolute favorite keto dessert! I love how quick it is to make and you can't over eat since it is only 1 serving.
Kim
Thanks, Lori! I'm glad you like the recipe. Enjoy your week. -Kim
Alison
Thank you for sharing this was great!
Abby
I’m looking to fulfill my sweet treats with my coffee in the morning, I work in an office and the are donuts almost daily and I miss that with my coffee! Anyways, there isn’t really a wonderful area at work to mix these ingredients there, but I’d be so curious to know what you thought if I mixed the ingredients a couple hours in advanced and kept it in the fridge. Would 50 seconds still be the right time?
Kim
Two things, Abby. First, I make up 6-8 small jars of the cake mix at a time in small jam jars and keep them in the cupboard. I guess you could add the egg yolk and mayonnaise to the mix before you bring it to work and mix before you cook it. You could also cook it before work and just gently reheat before eating. I don't know what would happen if it sat for a long time before baking. I remember reading old cook books introducing calumet baking powder which said that cakes could be mixed hours in advance before baking, so you may be alright? You may need to experiment which idea works best for you. Enjoy the cake. -Kim
Marsha
I'm getting 21 total carbs for this recipe. How are you keeping it down to 7 total?
Kim
Hi Marsha. It sounds like your program is counting the sugar alcohols as carbs. I used fatsecret.com and I do not count the erythritol since it is zero calorie, zero carb and is not absorbed by the body. Also, be careful which mayonnaise you choose. Some of them have added sugar so choose one that has zero carbs. -Kim
Jodi
I use the Swerve Erythritol and it has 3 carbs per tsp which would make it 9 carbs! I use fatsecret.com also and it counted all those little carbs. What Erythritol do you use?
Kim
Hi Jodi. Erythritol has no effectual carbs. It is not digested in the body and is therefore a zero calorie and zero carb product. Don't count the sugar alcohols in erythritol. Convention on low carb/keto blogs is to not include the numbers for erythritol. -Kim
Dollye
This is the BEST keto mug cake! Tastes just like real cake. Really hit the spot. I’ve had recipes that call for both almond and coconut flour and it was too dry!
Marie
Gonna try this - but I am not a baker lol. What would a whole egg & mayo result be?
Kim
Hi Marie. You will have a tall, tough, and eggy cake. That is why I used just the egg yolk. This recipe took me many, many times to get just like a regular cake. I did make the recipe with just 1 egg white and the mayo and it was also good, not as perfect as the yolk version, but very good and much better than using a whole egg. I hope this helps. -Kim
Ingrid
thanks for the recipe, did it this morning in the microwave, it was very good ! Tried again tonight and baked it in the oven and it was delicious !
Elizabeth
Very good.
Robyn
This is really great. I'd tried the mug cake previously with a whole egg and it was just so eggy. This is great, and a nice use of any extra egg yolks you might get in other recipes. Used this for birthday cake and we all enjoyed it. A great ni guilt treat.
Thank you,
Dinah
What would be a good substitute for mayonnaise? My husband hates it and can taste it even if there’s just a tiny bit.
Kim
Hi Dinah. I've been thinking about this and trying to come up with something that would be just as easy, but have failed. I bet some mashed avocado and subbing the water with oil would work. You could also try just 1 tbsp of oil for the mayo and keep the water. I haven't tested this version, but it may work. Simply using the yolk instead of the whole egg was a big improvement. Please let me know if either of these two suggestions work and I'll add it to the recipe notes. Have a wonderful Sunday. -Kim
Holly
Try replacing 1 T of almond flour with 1T of THM or Lifesource oat fiber to lower the carbs even more.
Kim
Yes, Holly, oat fiber is just under 1 gram of carbs and just under 1 gram of fiber per tablespoon (4 tbsp = 3g carbs/3g fiber). I suggest adding 1 tsp of oil along with the 1 tsp water because it's just a touch drier when subbing 1 tbsp of oat fiber for 1 tbsp of almond flour - I just tried it. Thank you for your suggestion. -Kim
Laura
Of course I had to discover this during a bout of insomnia at 3am. Will have to try for breakfast!
Kim
Lol! Doesn't that figure? Enjoy the recipe. -Kim
charlene
How can I make this yummy cake without microwaving. I do not own one and never will but please tell me it's still possible to make my cake and eat it too.
Kim
It should be possible, Charlene. I would bake at 350 until done. I can't give you a time because I haven't tried it yet. You might use a toaster oven. If you do, then put the heat at 325. Good luck. -Kim
Audrey
Can this also be baked in a toaster oven rather than using the microwave? Loving your website, thank you!
Kim
I would think so, Audrey, but I haven't tried. I would set the heat at 325 and bake until done. I don't know if it would take 15 minutes or more? -Kim
Sheryl
This looks delicious… Planning to make it later. You mentioned adding the egg white tocream cheese clouds, But I don’t see a recipe for that. Can you help me? Thank you so much
Kim
Hi Sheryl. Cream cheese clouds are just sweetened equal amounts of whipped cream cheese and whipped cream folded together then frozen. If you aren't afraid of raw whites, you could also fold the egg white into the "cloud". -Kim
Elizabeth Dietz
Could you add protein powder to this recipe for the weight loss surgery people out there? Chocolate cake that helps toward protein goals would be amazing.
Kim Hardesty
Elizabeth, using protein powder in low carb baking has a specific purpose. Protein powder helps dry-out almond flour recipes which tend to be dense and moist while providing some texture so that the baked good doesn't collapse upon itself too much while cooling. It also provides a more bread-like texture in fathead dough recipes. I would not add it to this recipe for two reasons: 1. it will make the mug cake dry. 2. Protein powder becomes tough when over handled - like mixing the ingredients together. The texture will be hard as a rock. -Kim
Pat Katz
Thank you, I will make this delightful recipe this morning!
Deborah
Kim, so glad to have a recipe to use all the egg yolks left after making your psyllium flax bread! Now I have the best of both worlds....perfect use for both the whites AND now the yolks.. Can't wait to try this as I have always thought the mugs cakes that did not use something like peanut butter were too dry. This sounds like a great fix. Will be on the menu tonight for sure.
Kim
Great, Deborah. I'll have to add some egg yolk ideas to the bread post for those folks who use whole eggs instead of store bought egg whites. I hope you enjoy the cake. -Kim
Morgen Stern
This really is the best mug cake I have ever tried! The texture is so light and airy you'd never guess it was a microwave mug cake. I devoured the first one while it was still warm. And then I made two more. Served them with whipped cream, sugar free chocolate sauce and chopped roasted almonds. Hubby loved it!
And he didn't bat an eyelid when I told him there was mayo in the batter. I guess he was too busy stuffing his face.
BTW, I also tried it with defatted peanut flour (12% fat) instead of almond flour and it was equally good. Rose a bit higher and was even lighter.
Thank you for an amazing recipe!
Kim
Thanks for bringing this comment over from Facebook, Morgen. I'm so glad you and your husband like it, too. I did two very similar mug cake recipes for Sukrin USA, one of them with peanut flour, and you are right - the texture is so nice with it! Thanks again for taking the time to comment and rate the recipe. I really appreciate it. Have a wonderful day. -Kim
Melissa
Delicious! I’ve made lots of low carb mug cakes and this is excellent! What could I substitute for eggs and Mayo for my friend who is allergic to eggs?
Kim Hardesty
Hi Melissa. I'm glad you like the cake!
I've been re-working my lemon mug cake recipe and I haven't had any luck substituting the egg yolk for something else. She can use sour cream in place of the mayo and maybe try "egg replacer" for the egg? But she will need to add 1/16-1/8 teaspoon of xanthan gum to bind the ingredients or the cake will crumble apart. I hope it works.
-Kim