4 eggs
1/2 c. buttermilk
1/2 stick butter
1 tsp. vanilla
1 c. sugar
1 unbaked pie crust

Preheat oven to 325 degrees. Cut butter in slices and place in bottom of pie crust. Mix remaining ingredients together and pour into pie crust. Bake at 325 degrees until custard is firm, 20 to 30 minutes.