1: Mix 1/2 mashed ripe banana, 1/4 cup coconut flour, 1 scoop of vanilla milkshake protein powder, 1/2 cup vanilla almond milk, and 2 tbsp unsweetened apple sauce.
2: Add 1 egg, a little vanilla extract, a pinch of baking powder, baking soda, and cinnamon.
3: Mix in walnuts.
4: Pour the mixture into greased muffin tins and top with a slice of banana.
5: Bake for about 30 minutes at 350 degrees.