Banana Cream Pie
["1 (9-inch) baked pastry shell", "3 Tbsp. cornstarch", "1 2/3 c. water", "1 (14 oz.) can sweetened condensed milk", "3 egg yolks, beaten", "2 Tbsp. margarine or butter", "1 tsp. vanilla extract", "3 medium bananas", "whipped cream or Cool Whip"]
["In heavy saucepan, dissolve cornstarch in water; stir in sweetened condensed milk and egg yolks.", "Cook and stir until thickened and bubbly.", "Remove from heat; add margarine and vanilla.", "Cool slightly.", "Slice 2 bananas; arrange on bottom of prepared crust.", "Pour filling over bananas; cover.", "Chill 4 hours or until set.", "Spread top with whipped cream.", "Slice remaining banana; dip in lemon juice.", "Drain and garnish top of pie. Refrigerate leftovers."]
["pastry shell", "cornstarch", "water", "condensed milk", "egg yolks", "margarine", "vanilla extract", "bananas", "whipped cream"]