Black Bottom Banana Brownies | nicktech.org

Ingredients

• 1⁄2 cup butter
• 1 cup sugar
• 1 egg
• 1 teaspoon vanilla extract
• 1 1⁄2 cups bananas (mashed, about 3 medium)
• 1 1⁄2 cups flour
• 1 teaspoon baking powder
• 1 teaspoon baking soda
• 1⁄2 teaspoon salt
• 1⁄4 cup cocoa