Preheat oven to 350°F.
Place unbaked pie crust in a 9-inch pie pan.
Cinch the edge of your pie crust to create your desired shape.
Place the pie crust in the oven and bake for 10 minutes. Remove from the oven and cool while you prepare the filling.
In a large bowl, combine sweet potato, melted butter, granulated sugar, brown sugar, evaporated milk, eggs, nutmeg, cinnamon, and vanilla.
Using a hand mixer, beat all ingredients together on medium speed until smooth (5-6 minutes)
Pour filling into the prebaked pie crust.
Cover pie with foil.
Bake for 50 minutes, remove from oven and remove foil, and then bake for another 20-30 minutes or until a sharp knife inserted in the center comes out clean.