Preheat the oven to 350°F (180°C) and line a 6-count muffin tin with muffin liners.

In a high-speed blender or mixing bowl, add the banana, almond butter, cocoa powder, protein powder, and coconut sugar. Blend until smooth

Pour the mixture into each muffin tin, filling until just full.

Bake for 18-20 minutes, or until a toothpick comes out just clean. Allow to cool in the muffin tin completely.