<human>:  How do I make a double chocolate banana bread?
<bot>: To make double chocolate banana bread, you will need the following ingredients: 2 cups of all-purpose flour, 1/2 cup of cocoa powder, 1 teaspoon baking powder, 1 teaspoon baking soda, 1/4 teaspoon salt, 3/4 cup melted butter, 1 cup sugar, 2 eggs, 2 ripe medium-sized mashed bananas, 1 teaspoon vanilla extract, and 1 cup semi-sweet chocolate chips. Preheat your oven to 350°F and grease a 9x5 inch baking loaf pan. In a large bowl, mix together the flour, cocoa powder, baking powder, baking soda, and salt. In a separate bowl, beat together the butter and sugar until creamy. Add the eggs and mashed bananas and beat again. Gradually mix the dry ingredients into the wet ingredients, then stir in the vanilla extract and chocolate chips. Spoon the batter into the prepared pans, and bake for 60 minutes or until a toothpick inserted to the center comes out clean. Let cool for 10 minutes in the pan before transferring to a wire rack. Enjoy!