2 tbsp. flour
1/2 c. milk
1/2 c. butter (1 stick)
1/2 c. sugar
1/2 tsp. vanilla

In small saucepan, cook flour and milk until thick, then cool. In medium-size bowl, beat butter and sugar 5 minutes. Add milk and flour. Beat 5 more minutes. Add vanilla. Be sure to beat mixtures as long as recipe calls for it. This recipe will frost a large angel food cake or a 9 x 13 inch cake.