Buttermilk Pie
["4 eggs", "1 1/4 c. sugar", "2 Tbsp. flour", "2 Tbsp. vinegar", "1 c. buttermilk", "1 tsp. vanilla", "1 unbaked pie crust"]
["Beat eggs.", "Add sugar, flour, vinegar, buttermilk and vanilla. Beat well.", "Pour into unbaked crust.", "Bake at 400\u00b0 until firm."]
["eggs", "sugar", "flour", "vinegar", "buttermilk", "vanilla", "crust"]