4ouncesbest-quality semisweet or bittersweet chocolate(finely chopped)
For the filling:
15ouncescanned pumpkin puree
3/4cupfirmly packed light-brown sugar
8ouncescreme fraiche or sour cream
3large eggs
1teaspoonground cinnamon
1teaspoonground ginger
1/4teaspoonground nutmeg
1/8teaspoonground cloves
1/4teaspoonsalt
Instructions
To make the crust:
In the bowl of an electric mixer fitted with the paddle attachment, combine flour, sugar, cocoa, salt, cinnamon, and cloves. Add butter; mix on low speed until butter is the size of small peas, about 5 minutes. Add egg; mix until ingredients come together to form a dough.
Preheat oven to 350°F. On a lightly floured working surface, roll out dough to just thicker than 1/8 inch. Brush off excess flour; transfer dough to a 10-inch tart pan with a removable bottom. Press dough into bottom and up sides of pan; trim excess to make flush with edge. Lightly prick bottom of dough all over with a fork. Chill until firm, about 30 minutes.
Bake shell until firm, about 15 minutes. Immediately sprinkle chocolate over bottom of shell; smooth with a spatula.
To make the filling:
In a medium bowl, whisk together pumpkin puree, brown sugar, creme fraiche/sour cream, eggs, cinnamon, ginger, nutmeg, salt, and cloves until smooth. Pass mixture through a fine mesh sieve/strainer set over a clean bowl; discard solids. Pour filling into prepared crust.
Bake until filling is set, about 40 minutes. Transfer to a wire rack, and let cool at least 30 minutes.
Decorate as desired.
Refrigerate until well set, at least 1 hour and up to 1 day.
Notes
Source: Adapted from Martha Stewart.com (crust; filling)You're Gonna Bake It After Allbakeitafterall.com