Fluffy White Frosting
["6 Tbsp. flour", "2 c. milk", "2 c. sugar", "2 c. butter", "2 tsp. vanilla"]
["Make a thick paste of the flour and some milk.", "Gradually add rest of milk.", "Cook in double boiler, beating constantly, until thick.", "Cool.", "Cream the butter and sugar. Add vanilla and beat until fluffy. Add cooled milk mixture and continue beating until like whipped cream. Cool before icing cake.", "Cake and icing must be cool."]
["flour", "milk", "sugar", "butter", "vanilla"]