3 marbled angel food cake Recipes

egg whites (10-12 large), powdered sugar, cake flour or sifted all-purpose flour, unsweetened cocoa powder, cream of tartar, vanilla, granulated sugar, recipe chocolate powder sugar icing (optional) ( see recipe below ), sweentened whipped cream (optional), fresh fruit (optional)

angel food cake mix, strawberry gelatin or 1 (3 oz) package lime jell-o gelatin, strawberry gelatin or 1 (3 oz) package lime jell-o gelatin, boiling water, cool whip, thawed, strawberry slices (to garnish, optional ) (optional) or lime slice (to garnish) (optional)