Creamy Icing - cooking recipe

Ingredients

1 stick butter
1/2 c. shortening
1 c. sugar
2 tsp. vanilla
5 Tbsp. flour
1 c. milk

Preparation

In large bowl mix butter, shortening, sugar and vanilla.
Mix on high until light and fluffy; set aside.
Mix the flour and milk (a little at a time) in small pan.
Cook over medium heat, stirring constantly until thick.
Let completely cool.
When cool, add to the sugar mixture and beat on high for 3 to 5 minutes (no longer).