Flour Frosting - cooking recipe

Ingredients

1/3 cup flour
1 cup milk
1/2 cup shortening
1/2 cup margarine
1 cup sugar
1/2 teaspoon vanilla
1/4 teaspoon salt

Preparation

In a small saucepan blend flour and milk.
Cook stirring constantly until mixture bubbles.
Cool.
In a large bowl, cream shortening, butter and sugar with a mixer until fluffy.
Add vanilla and salt, blending well.
On medium speed beat in cooled flour mixture in small portions (teaspoonful at a time), beating well after each addition.
Continue beating until light and fluffy.