Lemon Chiffon Cake - Whipped egg whites help give this cake its light and airy texture. When separating the eggs, be sure not to get any yolk in the whites. Fat from the yolks will decrease the volume of the whipped egg whites, creating a denser cake. http://www.cooking.com/recipes-and-more/recipes/lemon-chiffon-cake-recipe#axzz3WA8yt7n7