Old-Fashion Buttermilk Pie and Texas Buttermilk Coconut Pie are some recipes for buttermilk pie, which is popular in Texas as well as in many Southern states. Use a pre-made pie crust, or make one from scratch.
To make Old-Fashion Buttermilk Pie from What's Cooking America, preheat the oven to 425 degrees Fahrenheit. In a bowl, combine 1 1/2 cups sugar, 3 tablespoons all-purpose flour and 1/2 cup buttermilk. Add 3 lightly beaten eggs and an additional 1/2 cup buttermilk. Whisk until well blended. Add 1/4 cup melted butter and 1 teaspoon vanilla extract. Pour the mixture into the pie crust, and top with chopped pecans if desired. Bake for 10 minutes, then reduce heat to 350 degrees Fahrenheit, and continue baking for 25 to 30 minutes.
For the Texas Buttermilk Coconut Pie from America's Table, preheat an oven to 350 degrees Fahrenheit. Combine 1/2 stick melted butter, 1 cup sugar, 2 eggs, 1 teaspoon vanilla extract and 1/3 cup buttermilk in a bowl. Add 1/2 cup sweetened shredded coconut, and mix well with a spatula. Pour the filling into a pre-made pie shell. Bake for 35 to 40 minutes. In a dry frying pan, toast 1/2 cup shredded coconut until golden brown. Top the cooled pie with 2 cups whipped cream, and sprinkle with the toasted coconut.