Silver White Cake
["2 1/4 c. self-rising flour", "1 2/3 c. sugar", "1 1/4 c. milk", "2/3 c. shortening", "1 tsp. vanilla", "5 egg whites"]
["Preheat oven to 350\u00b0.", "Beat flour, sugar, milk, shortening and vanilla on low speed for 30 seconds, then on high speed for 2 minutes.", "Beat in egg whites on high for 2 minutes.", "Pour into pan (2 round or 1 sheet pan).", "Bake layers for 30 to 35 minutes or sheet cake for 40 to 45 minutes.", "Cool 10 minutes; remove from pan."]
["flour", "sugar", "milk", "shortening", "vanilla", "egg whites"]