STEP I:

5 tbsp. flour
1 c. milk

Mix together and cook in saucepan until it forms a white paste. Cool.

STEP II:

1/2 c. Crisco
1/2 c. (1 stick) butter
1 c. sugar
1 tsp. vanilla (last)

Gradually add 1/3 of each Crisco, mix; butter, mix; sugar, mix; Crisco, mix; butter, mix; sugar, mix, until gone. Beat well after each addition until frosting stands in peaks. Add 1 teaspoon vanilla.