Decorating Buttercream Icing(From Decorating Classes) - cooking recipe

Ingredients

1 lb. 4x sugar
1/4 lb. (1/2 c.) soft butter or margarine
1/4 lb. (1/2 c.) cake shortening (Crisco)
1/8 tsp. salt
3 to 4 Tbsp. milk
vanilla to taste

Preparation

Blend butter and shortening. Add sugar, vanilla and 2 tablespoons milk.
Cream to proper consistency.
Use rest of milk, if necessary.