Buttermilk Chess Pie
["2 c. sugar", "2 Tbsp. all-purpose flour", "3 eggs, lightly beaten", "2/3 c. buttermilk", "1/2 c. butter or margarine, melted", "1 tsp. vanilla", "1 unbaked 9-inch pastry shell"]
["Combine sugar and flour in a large bowl; add eggs and buttermilk, stirring until blended.", "Stir in butter and vanilla, and pour into unbaked pastry shell.", "Bake at 350\u00b0 for 45 minutes or until set.", "Cool on wire rack."]
["sugar", "flour", "eggs", "buttermilk", "butter", "vanilla", "pastry shell"]