Cake Frosting - cooking recipe

Ingredients

1 tsp. vanilla
4 c. powdered sugar
1/2 c. solid vegetable shortening
1/2 c. stick margarine
milk

Preparation

Combine sugar, shortening and margarine with 3 tablespoons milk in large mixing bowl.
Add more milk if mixture is too thick. (Shortening and margarine may be used as substitutes for each other if necessary.)
Spread on baked, cooled cake.