Ingredients
Method
- Preheat oven to 350°F (175°C) and line a 12-cup muffin tin.
- Whisk eggs, milk, melted butter, and mashed banana until combined.
- Stir in brownie mix, oats, and baking powder until just mixed.
- Fold in chocolate chips if using; fill muffin cups two-thirds full.
- Bake 18–22 minutes until a toothpick has a few moist crumbs. Cool in pan 5 minutes, then transfer to a rack.