Buttermilk Pie This is my Meme’s (Pauline Early Gee) recipe. Ingredients 3 eggs 1 stick (1/2 cup) margarine, softened 2 cups sugar 3 tablespoons flour 1 teaspoon vanilla 1 cup buttermilk 9″ pastry crust, unbaked Preheat oven to 350ºF. Blend all ingredients (except crust, of course) and then pour into pie crust. Bake 40-45 minutes until set. Chill and serve.