Italian Creme Cake
["8 eggs, separated and whites beaten stiff", "2 c. sifted cake flour", "2 c. sugar", "2 tsp. baking powder", "grated lemon rind or orange rind"]
["Mix egg yolks with sugar; add flour, baking powder and rind. Beat in stiffly beaten egg whites.", "Grease pan; bake 35 minutes in a 350\u00b0 oven.", "After cool, slice cake in thirds to make 3 layers. (Use lasagna size pan.)"]
["eggs", "cake flour", "sugar", "baking powder", "lemon rind"]