1 tablespoon baking powder
2 cups flour
1/3 cup sugar
3 tablespoons cocoa
1-1/4 cups mashed banana
2/3 cup milk
1/3 cup oil
1 egg, beaten
6 ounces semi-sweet chocolate chips
1/2 cup chopped walnuts (optional)
Combine baking powder, flour, sugar and cocoa. Blend in milk, oil, egg and banana until moistened. Mix in chocolate chips. Spoon batter into 12-cup muffin tin, greased or with with paper liners. Serve warm.