Quick Lemon Pie
["1 (8-inch) baked pastry shell", "1/2 c. lemon juice", "1 tsp. grated lemon rind", "1 (15 oz.) can sweetened condensed milk", "2 eggs, separated", "1/4 tsp. cream of tartar", "4 Tbsp. sugar"]
["Combine lemon juice and rind.", "Blend in condensed milk.", "Beat egg yolks slightly; blend into mixture.", "Pour into cooled pastry shell.", "Beat egg whites until foamy; add cream of tartar.", "Add sugar, one tablespoon at a time, beating well after each. Continue beating until very stiff peaks form.", "Pile lightly on pie filling.", "Brown in oven (350\u00b0) for 10 minutes.", "Serves 6."]
["pastry shell", "lemon juice", "lemon rind", "condensed milk", "eggs", "cream of tartar", "sugar"]