Butterscotch Pie
["1 (9-inch) pastry shell, baked", "1 3/4 c. milk", "4 Tbsp. margarine", "1 1/2 c. brown sugar", "2/3 c. flour", "4 eggs, separated", "1 Tbsp. vanilla", "pinch of salt", "3/4 c. granulated sugar"]
["Bake shell.", "Heat milk and margarine to boiling.", "Combine brown sugar, flour, egg yolks and vanilla.", "Mix with small amount of warm milk.", "Continue to cook over medium heat, stirring constantly until thick.", "Pour in shell.", "Mix egg whites with sugar, 1/2 teaspoon cream of tartar and salt to make meringue."]
["pastry shell", "milk", "margarine", "brown sugar", "flour", "eggs", "vanilla", "salt", "sugar"]