"Use your favorite white cake for this recipe, whether it be from scratch or from a mix. I use my yellow cake mix and turn it white by adding egg whites and sour cream. A great coconut cake needs coconut flavor in the cake, so add ½ teaspoon coconut extract. And the frosting, too, is flavored with coconut, and the top and sides are piled with shredded sweetened coconut. Either bake 3 layers or bake 2 layers and split them in half horizontally to make four layers...."