Preheat oven to 350 degrees F and grease muffin tin with coconut oil.
Add the dry ingredients to the wet ingredients and stir to combine. Do not over mix.
Fold in the walnuts.
Pour the mix into the prepared muffin pan, approximately 2/3 of the way full.
Bake for 20-25 minutes, or until a toothpick inserted comes out clean and tops are golden brown.