Creamy Frosting - cooking recipe

Ingredients

1 stick butter
1/2 c. shortening
1 c. sugar
3 Tbsp. flour
2/3 c. milk
1 tsp. vanilla

Preparation

Cream together butter, shortening and sugar.
Add flour, one tablespoon at a time, milk and vanilla.
Beat 15 to 20 minutes until sugar dissolves.