Hot Vanilla Icing - cooking recipe

Ingredients

1 small can Pet milk
2 scant c. sugar
3/4 stick margarine
1 tsp. vanilla

Preparation

Mix milk, sugar and margarine.
Bring to a boil.
Boil exactly 5 minutes. Remove from heat and add vanilla.
Cream until thick.
Spread on chocolate sheet cake.
Do not cook too hot and do not half recipe.