Buttermilk Pie
["2 (9-inch) pie crusts", "2 sticks margarine", "2 Tbsp. flour", "1 c. buttermilk", "2 1/2 c. sugar", "4 eggs", "2 tsp. vanilla"]
["Mix sugar and flour.", "Beat eggs before adding.", "Add buttermilk and vanilla.", "Bake at 400\u00b0 until top is brown, then bake at 300\u00b0 for approximately 1 hour."]
["margarine", "flour", "buttermilk", "sugar", "eggs", "vanilla"]