Fluffy White Frosting
["1 c. granulated sugar", "1/3 c. water", "1/4 tsp. cream of tartar", "dash of salt", "2 unbeaten egg whites", "1 tsp. vanilla"]
["Combine sugar, water, cream of tartar and salt in saucepan. Bring to boil, stirring, until sugar dissolves.", "Very slowly, add to unbeaten egg whites in mixing bowl, beating constantly with electric mixer, until stiff peaks form.", "Beat in", "vanilla."]
["sugar", "water", "cream of tartar", "salt", "egg whites", "vanilla"]