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1
Butter a 9-inch pie tin and set aside.
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2
On a lightly floured surface, roll out the pie dough to a 12-inch round. Fit the dough into the prepared pie tin, tightly into the corners and with the edges evenly overhanging the sides. Fold the excess dough under the rim, to make a nicely raised edge (there is a a lot of filling later, so a bit of height on the crust is needed). Crimp or decorate as desired. To make the braid as pictured, roll extra dough (about 1/4 of a recipe for a single-crust pie dough) to 1/8-inch thick rectangle. Cut into long 1/8-inch strips and braid in groups of 3. Wet the bottom crust with with water or an wash made with an egg beaten with a tablespoon of water, then gently place braid on top, carefully pressing to secure. Use as many braids as needed to cover the edge, joining the ends. Pop the pastry into the fridge for 30 minutes.
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3
Preheat an oven to 425u00b0 F / 220u00b0 C, with a rack in the lower third.
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4
Place the cold pastry shell on a rimmed baking sheet. Prick the pastry all over with the tines of a fork, then line the shell with aluminum foil. Fill with pie weights or dried beans and blind bake for 10 minutes. Remove the foil and beans and bake for 10 minutes more. Remove the pastry from the oven (still on its baking sheet) and let cool on a wire rack.
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5
Scoop the creme fraiche into the bowl of a food processor that has the metal blade in place. Add the cornstarch, cinnamon, ginger, cardamom, clove, and pepper. Run the machine for 30 seconds, scraping down the sides of the bowl once. Combine the pumpkin puree, heavy cream, granulated sugar, brown sugar, maple syrup, and salt in a saucepan over medium heat. Cook, stirring often, until the mixture is sputtering and thickened, with a glossy sheen, 5 to 7 minutes.
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6
Pour the pumpkin into the spiced creme fraiche and run the machine until blended, maybe 1 minutes. Scrape down the side of the bowl, process again for 2 minutes. Take off the lid and let the filling cool down a bit -- about 10 minutes -- the bowl should feel warm, not hot. Replace the lid and fire up the motor again. Add the eggs, one at a time, through the feed tube, stopping and clearing the sides of the bowl after each addition. Beat until well blended. Remove the bowl from the machine and carefully knock it against a counter to release any trapped air. Let settle for a minute.
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7
Reduce the oven temperature to 350u00b0 F / 175u00b0 C. Pour the filling into the par-baked pastry (see note above about avoiding overfilling), then bake until the filling is puffed at the center and with only the slightest wobble, 45 to 50 minutes.
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8
Transfer from the oven and cool completely on a wire rack (without the sheet tray). Chill or serve at room temperature with softly whipped cream and Black Tea Caramel.
