Snow White Frosting
["2 c. powdered sugar", "7 Tbsp. hot water", "1/2 tsp. cream of tartar", "pinch of salt for flavor", "1 egg white (unbeaten)"]
["Dissolve sugar and hot water in pan.", "Boil 1 minute.", "Add to egg, cream of tartar and flavoring in a bowl.", "Beat at high speed until stiff."]
["powdered sugar", "water", "cream of tartar", "salt", "egg"]