On a lightly floured surface, roll dough to a 1/8-in.-thick circle; transfer to a 9-in. pie plate. Trim to 1/2 in. beyond the rim of the plate; flute edge. Place the pie plate on a rimmed baking sheet.
In a large bowl, beat sugar, eggs, buttermilk, melted butter, flour, vanilla and salt until blended. Pour into the crust.
Bake for around 50-60 minutes until top is light golden brown and center is almost set.
Cool on a wire rack.
Serve or refrigerate within 2 hours.
Note: Do not over-bake this pie to keep the surface from cracking. The center of the pie will still be slightly wobbly after baking but will set up as it cools.
Notes
To keep the surface of the pie from cracking, it’s important not to over-bake it. It’s okay for the center to be wobbly when you remove the pie from the oven because it will set as it cools.