Here you go, here are a bunch: http://www.joyofbaking.com/MarbleCake.html http://food.realsimple.com/realsimple/recipefinder.dyn?action=displayRecipe&recipe_id=640877 http://www.dianaskitchen.com/page/recipes03/0814_choc_cake.htm http://www.grouprecipes.com/s/marble-cake/recipe/1/relevancy (Whole bunch of Marble Cake Recipes) http://southernfood.about.com/od/chocolatecakes/r/bl30206q.htm If you don't want to click one of the links, this seems to be the best one I could find: INGREDIENTS: 2 1/4 cups sifted cake flour 1 1/2 cups sugar 1 tablespoon baking powder 1 teaspoon salt 1/2 cup vegetable oil 7 eggs, separated 3/4 cup cold water 1 teaspoon vanilla 1/2 teaspoon cream of tartar 1/4 cup boiling water 2 tablespoons sugar 2 squares (2 ounces) unsweetened chocolate, melted PREPARATION: Marble cake directions Sift flour, sugar, baking powder, and salt into a large mixing bowl. Make a well in the center of dry ingredients; add oil, 7 egg yolks, cold water, and vanilla. Beat until smooth. In another bowl, beat the 7 egg whites until stiff peaks form. Pour egg yolk mixture over the entire surface of egg whites, gently folding in to blend. Remove 1/3 of the batter to another bowl. Blend boiling water, sugar and chocolate; fold into the smaller portion of batter. Spoon half of the light batter into an ungreased 10-inch tube pan; top with half of the chocolate batter. Repeat layers. With a butter knife or narrow spatula, swirl marble cake batters gently to marbleize. Bake at 325° for 65 minutes. Invert and cool. Frost marble cake with chocolate butter frosting or other frosting. =)