Buttermilk Pie
["1 c. sugar", "3/4 c. buttermilk", "3 eggs", "1 Tbsp. flour", "1 tsp. vanilla", "1/2 stick margarine"]
["Whip altogether.", "Pour in unbaked pastry shell.", "Bake at 350\u00b0."]
["sugar", "buttermilk", "eggs", "flour", "vanilla", "margarine"]