The "Best" Cake Icing - cooking recipe

Ingredients

1 c. milk
5 Tbsp. flour
1 c. sugar
1 c. soft butter
1 tsp. vanilla

Preparation

In shaker or jar, blend until smooth the milk and flour.
Cook until thick, stirring constantly.
Mixture will be very thick. Cool.
Cream remaining ingredients together until light and fluffy with mixer in a medium sized bowl.
Gradually add cooled milk/flour mixture to sugar/butter while beating at high speed until all sugar granules are dissolved.
Ready to frost cooled cake.