Just like the type all those in-store bakeries use.
INGREDIENTS (for 1 servings):
- 1 cup shortening
- 1/2 cup butter
- 1 1/2 tablespoons vanilla extract
- 2 pounds confectioners' sugar
- 1/8 teaspoon salt
- 4 tablespoons water
In a heavy duty mixer combine the shortening, butter or margarine, vanilla and water. Add the sugar and salt, beat until well mixed. Add a tablespoon or two more of water if needed. Turn mixer to the highest speed and beat for 15 minutes.