Chocolate Sauce

1 c. milk 1/2 sq. chocolate 1/2 c. sugar 2 Tb. flour 1 Tb. butter 1/2 tsp. vanilla

Heat the milk and in it melt the chocolate.
Mix the sugar and flour and stir into the mixture rapidly to prevent the formation of lumps. Cook until the sauce thickens, add the butter, and cook for a few minutes longer.
Add the vanilla and serve either hot or cold, as desired.