Melt butter in a microwave-safe bowl or ramekin. Add the almond flour, egg and baking powder to the butter. Beat with a fork until completely mix.
Microwave for about 90 seconds, until firm. Run a knife along the edge and flip over a plate to release. Slice in half, then toast in the toaster or in a skillet.
To Bake: Pre-heat oven to 375F. Bake in a ramekin for 10-12 minutes or until cooked through.
Video
Notes
To Bake in Oven: Use a ramekin and bake at 375 for 10 minutes