flour frosting, perfect on a birthday cake

FLOUR FROSTING

* * *

1 c. milk
4 Tbsp. flour
1/2 c. margarine
1/2 c. shortening (Crisco)
1 c. icing sugar
2 tsp. vanilla

Combine milk and flour in a small sauce pan (use a whisk). Heat and stir until thick and SMOOTH.
 Cool. In a large bowl, using an electric mixer, beat shortening and margarine well then add sugar and vanilla 
beating until fluffy, 4 min. Continue beating while adding flour mixture (any lumps, removed).
 Beat until fluffy, 4 min. or more. Double recipe for a large layer cake.


NOTES : This looks just like a bakery frosting, but isn't as sweet!