You are here: Home » Recipes » Chocolate Banana Crumb Cake Chocolate Banana Crumb Cake Recipe by Relish ContributorKitchen Tested Yield 24 servings Chocolate and bananas give this fabulous reduced-fat cake extra moistness. PrintEmail Ingredients 1 cup old-fashioned oatmeal1/2 cup light brown sugar3 tablespoons margarine, chilled and cut into pieces2 teaspoons vanilla extract, divided1 (18 1/4-ounce) package light devil's food cake mix1 1/4 cups mashed very ripe bananas (about 3)1 large egg2 large egg whites1/2 cup reduced-fat semisweet chocolate chips Instructions Preheat oven to 350F. Coat a 13x9x2-inch baking pan with nonstick cooking spray and dust with flour. For the topping, combine the oatmeal and brown sugar in a small bowl. Cut in margarine until mixture is crumbly. Stir in 1 teaspoon vanilla and set aside. In a large mixing bowl, combine cake mix, bananas, egg, egg whites and the remaining vanilla. Blend with a mixer at low speed until well mixed and continue beating 2 minutes. Spread batter in baking pan. Sprinkle top with chocolate chips and oatmeal mixture. Bake 35 minutes, or until a toothpick inserted in the center comes out clean.