Miss Ruby'S Burnt Sugar Frosting
["3 c. sugar (melt 1/2 c. of this)", "2 Tbsp. flour", "3/4 c. milk", "1 tsp. vanilla", "1 1/2 sticks margarine"]
["Melt 1/2 cup sugar in heavy pot over medium heat.", "In another boiler, combine 2 1/2 cups sugar and the flour, then add milk and margarine (cut up).", "Bring to a boil over medium heat.", "Pour this boiling mixture into melted sugar; stir until well mixed.", "Cook to soft ball stage.", "Cool, add vanilla and beat."]
["sugar", "flour", "milk", "vanilla", "margarine"]