Seven Minute Frosting
["1 1/2 cups sugar", "1/2 teaspoon cream of tarter", "1/3 cup water", "2 egg whites", "1 teaspoon vanilla flavoring"]
["Mix all ingredients, except vanilla, cook for 7 minutes in double boiler, beating constantly at high speed.", "Remove from heat. Add vanilla and beat until fluffy.", "Frost cake."]
["sugar", "cream of tarter", "water", "egg whites", "vanilla flavoring"]