Yield: 9x13 pan
Ingredients
- 1/2 cup unsalted butter, softened
- 1/2 cup white sugar
- 1/2 cup brown sugar
- 1 egg, room temperature
- 1 tsp vanilla extract
- 1 1/2 cups mashed bananas (about 4 bananas)
- 1 1/2 cups Bob's Red Mill Gluten Free 1-to-1 Baking Flour
- 1 tsp baking soda
- 1 tsp baking powder
- 1/2 tsp salt
- 1/4 cup unsweetened cocoa powder
- 1 cup mini semisweet chocolate chips
Directions
- Preheat oven to 350°F.
- Grease 9x13 baking pan with nonstick cooking spray.
- Beat butter and sugars in large mixer bowl until light and fluffy.
- Add egg and vanilla; beat until well combined.
- Stir in mashed bananas.
- Stir in flour, baking soda, baking powder, and salt until just combined.
- Remove half of batter and place in another bowl. Mix in cocoa powder. Spread cocoa batter in bottom of prepared pan.
- Stir chocolate chips into remaining light batter. Spoon chocolate chip batter on top of cocoa batter in pan.
- Swirl batter into marbled design, if desired.
- Bake about 25 minutes, or until edges are golden brown.
- Allow to cool before cutting into bars.
Recipe adapted from Allrecipes.