Milk Frosting - cooking recipe

Ingredients

1 1/2 c. sugar
2 level tsp. butter
1/2 c. milk
1/2 tsp. vanilla

Preparation

Melt butter in a saucepan, then add sugar and milk.
Boil gently, without stirring, for 13 minutes.
Beat until stiff enough to spread, then add flavoring and spread over cake.