Nut Butter Protein Mug Cake

Protein mug cake

EASY - SIMPLE - FAST - NO FUSS - NO GLUTEN - PROTEIN!

1/2 scoop (15g) whey or vegan

1 tsp coconut flour

1 egg

30g smooth nut butter

1 tsp stevia or sweetener

1/2 tsp baking powder

1/2 tsp vanilla extract