Chocolate banana zucchini cake DessertEasy1 h 10 m Send this recipe to a friend Print this page Ask a question to the author Post your photo of this recipe Ingredients 6 1/2 cup unsalted butter at room temperature 2 cups all purpose flour 1/2 cup unsweetened cocoa powder 1 tsp baking soda 1/2 tsp baking powder 1/2 tsp salt 1 cup (packed) light brown sugar 4 tbsp white sugar 1 tsp pure vanilla extract 1 tsp instant coffee granules 2 large eggs 1 cup unpeeled grated zucchini 1 large overripe banana (mashed) 1 cup bittersweet chocolate chips Confectioner's sugar (for sprinkling on the top)- optional View the directions