Chocolate Walnut Banana Bread. You can cook Chocolate Walnut Banana Bread using 10 ingredients and 6 steps. Here is how you achieve that. Ingredients of Chocolate Walnut Banana Bread You need 2 cups of all purpose flour. Prepare 1 teaspoon of baking powder. It’s 1/4 teaspoon of kosher salt. You need 1/2 cup of butter […]