Butterscotch Pie
["1 1/2 c. brown sugar", "1/2 c. white sugar", "3 c. milk", "6 to 7 Tbsp. plain flour", "2 tsp. vanilla", "2 to 3 Tbsp. margarine", "6 eggs, separated (reserve whites for meringue)", "dash of salt"]
["Mix together in pan and cook over medium heat until thick. Put in baked pie shell and top with meringue."]
["brown sugar", "white sugar", "milk", "flour", "vanilla", "margarine", "eggs", "salt"]