Preheat oven to 350°F.
How to make apple butter
Start off by blending the apple in a chopper or blender and pulse for a few minutes until it gets the consistency of apple sauce.
In a sauce pan add the grass-fed butter, add mashed apple cook at low heat until both ingredients are combined and slightly golden. That is your apple butter. Set aside.
Mix dry ingredients together in a large mixing bowl until well blended.
In a separate bowl mix wet ingredients.
Start off by beating the eggs, then add coconut oil, bananas, apple butter, vanilla and mix. I did it all with a hand whisker( Don't worry about over-mixing flourless cakes or anything— usually the more you mix, the better!)
Pour wet ingredients into dry and mix.
Prepare a 8" round bakeware with coconut oil cooking spray or grass-fed butter.
Bake on center rack at 350 for about 45-55 minutes, or until a toothpick inserted in the center of a comes out clean.
Cool in bake for 5 minutes or so then transfer to wire cooling rack. They're also delightful when warm!