Mash the banana. In a bowl, mix the egg, melted butter, and mashed banana.

Add the rolled oats, oat flour, and baking powder. Mix well and fold in the chocolate chips.

Form small balls, flatten them slightly, and place them on a baking sheet lined with parchment paper. Bake for 20 minutes at 350°F.

Remove and let cool at room temperature. They're addictive! 😋