Flour Icing - cooking recipe

Ingredients

5 heaping tsp. flour
1 c. milk
2 sticks butter
1 c. sugar
1 tsp. vanilla

Preparation

Bring to a boil the flour and milk until it thickens.
Cool. Then cream together the butter, sugar and vanilla.
Add the cooled paste and beat 7 minutes.
It is very important to beat this icing the whole time.