Never Fail Frosting
["1 c. sugar", "1/4 tsp. salt", "1/2 tsp. cream of tartar", "2 unbeaten egg whites", "3 Tbsp. water", "1 tsp. vanilla extract"]
["Combine all ingredients, except vanilla in top of double boiler.", "Use mixer to stir.", "Beat briskly for 3 minutes or until frosting is fluffy and holds its shape.", "Remove from heat and add vanilla.", "Yields enough for two 9-inch layer cakes."]
["sugar", "salt", "cream of tartar", "egg whites", "water", "vanilla extract"]