Preheat the oven to 350 and position the rack on the bottom. Spray a glass pie dish with cooking spray.

Measure all of the dry ingredients into a medium bowl and mix thoroughly with a whisk. Add the butter and mix with a spatula until the butter is distributed and the mixture resembles moist crumbs with larger clumps throughout. It should be moist but not wet and sticky.

Dump the peanut flour crust mixture into the pie plate. With your fingers, distribute the crumbs around the pie plate and up the sides. Place a piece of waxed paper over the crust and with a flat bottomed glass, press the crust into the plate. Take your time, crumb crusts are a but fiddly.

Bake on the bottom rack for 10 - 15 minutes or until it just begins to brown. Remove and let cool completely before filling. I suggest to let the filling sit overnight before cutting and serving.