Carolina Dream Cake
["1 c. butter, softened", "2 c. sugar", "1 tsp. vanilla", "3 1/4 c. all-purpose flour", "3 1/2 tsp. baking powder", "3/4 tsp. salt", "1 c. milk", "8 egg whites"]
["Cream butter.", "Gradually add sugar, beating well with mixer. Add vanilla.", "Combine flour, baking powder and salt.", "Add to creamed mixture, alternating with flour mixture.", "Beat egg whites until stiff.", "Fold them into batter.", "Grease 3 (9-inch) round cake pans.", "Line with wax paper (also grease it).", "Pour batter in them and bake at 350\u00b0 for 18 to 20 minutes."]
["butter", "sugar", "vanilla", "all-purpose", "baking powder", "salt", "milk", "egg whites"]