Caramel Frosting
["2 c. brown sugar", "1 c. milk", "1/4 tsp. cream of tartar"]
["Cook brown sugar and milk over medium", "heat to the soft ball stage (230\u00b0).", "Remove from stove and add cream of tartar. Stir very little to blend the cream", "of tartar.", "Set aside and cool to lukewarm.", "Beat until it thickens to frost cake."]
["brown sugar", "milk", "cream of tartar"]