Blue Ribbon White Cake
["1 c. shortening", "2 c. sugar", "3 c. flour (sift 3 times)", "3 1/2 tsp. baking powder", "1 c. sweet milk", "1 Tbsp. vanilla", "pinch of salt", "8 egg whites, stiffly beaten"]
["Cream shortening and sugar.", "Add baking powder and salt to sifted flour.", "Add flour and milk alternately to creamed mixture. Add vanilla.", "Fold in egg whites by hand.", "Bake at 375\u00b0 for 30 minutes (two 9-inch layers)."]
["shortening", "sugar", "flour", "baking powder", "sweet milk", "vanilla", "salt", "egg whites"]