French Icing

Directions

1. 1
   Cook flour and milk over medium heat, stirring constantly until it starts to thicken.
2. 2
   Reduce heat to low and continue to stir until thick and smooth.
3. 3
   Remove from heat and let cool.
4. 4
   This has to be cooked slow so it won't get lumpy.
5. 5
   Cream together shortening and margarine.
6. 6
   Then add to flour mixture and mix well.
7. 7
   Add vanilla.
8. 8
   Add sugar.