Roll out the Pie Crust to a circle that is approximately 13 inches in diameter, then transfer it to a 9-inch pie plate. Press gently into the bottom and sides of the pie plate. Trim the crust so there is a one-inch overhang, then fold over and crimp the edges of the crust with your fingers. Use a fork to poke holes all around the dough.
Place a piece of foil inside the crust, then fill it with dried beans or pie weights. Bake for 15 minutes, then remove the foil and the beans. Bake another 10 minutes, until the bottom of the crust looks dry. Remove from the oven.
While the crust is baking, mix together the sweet potatoes, butter, brown sugar, sugar, eggs, heavy cream, cinnamon, nutmeg, and salt, until well blended. Pour the filling mixture into the pie crust, and spread evenly.
Bake for 15 minutes, then reduce the temperature to 350°F and bake an additional 45-60 minutes, until the center does not jiggle when the pie is gently shaken.
Remove from the oven and let cool for at least 1 hour before serving. Serve with Whipped Cream, and refrigerate any leftovers.
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Notes
STORE. Cool the pie, wrap it tightly with plastic wrap, and store it in the fridge for about 4 days.FREEZE. Wrap it again with foil and freeze it for up to 3 months. To eat, thaw it in the refrigerator, and let it come to room temperature before slicing.