1 lb. powdered sugar
3/4 c. shortening
1 egg white
1 tsp. vanilla
1/4 tsp. salt
2 tbsp. plus 1/2 tsp. hot water
1 drop each of pineapple, rum, and butter flavoring
2 tbsp. white corn syrup

Combine the first 8 ingredients in a bowl and blend at low speed until well mixed. Turn mixer to medium speed and blend. Reduce speed to low and slowly pour in corn syrup that has been heated to boiling point. Continue beating at low speed for 5 minutes. Use 1 recipe to frost a layer of sheet cake and an additional recipe to decorate.