Creamy Coconut Icing
["1 c. sugar", "3 egg whites", "1/3 c. white Karo", "2 Tbsp. water", "1/4 tsp. salt", "1/4 tsp. cream of tartar"]
["Mix in a double boiler.", "Boil and stir until stiff (8 to 10 minutes).", "Spread over cake and top with coconut."]
["sugar", "egg whites", "white Karo", "water", "salt", "cream of tartar"]