Old Fashion Egg Custard Pies
["6 eggs, beaten", "1 c. sugar", "2 Tbsp. flour", "1 tsp. vanilla", "2 1/2 c. milk", "2 unbaked (9-inch) pastry shells", "1/4 c. margarine, thinly sliced"]
["Mix first five ingredients well.", "Pour into unbaked pastry shells.", "Top with sliced margarine. Bake at 350\u00b0 for 25 to 30 minutes."]
["eggs", "sugar", "flour", "vanilla", "milk", "pastry shells", "margarine"]