Buttermilk Chess Pie
["3 c. sugar", "3 Tbsp. flour", "1 c. buttermilk", "2 unbaked (9-inch) pie shells", "3/4 c. butter, softened", "7 large or 8 small eggs", "1 1/2 tsp. vanilla"]
["Combine sugar and flour; add eggs and buttermilk.", "Stir in butter and vanilla.", "Bake at", "350\u00b0\tfor 45 minutes or until set."]
["sugar", "flour", "buttermilk", "pie shells", "butter", "eggs", "vanilla"]