For the Crust
- 7-1/2 ounces gingersnaps (or 1-1/2 cups finely ground gingersnap crumbs)
- 1/4 cup granulated sugar
- 5 tablespoons unsalted butter, melted
For the Filling
- 1 kg pumpkin
- 1-1/3 cups granulated sugar
- 1 teaspoon ground cinnamon
- 1/2 teaspoon ground ginger
- 1/4 teaspoon ground nutmeg
- 1/4 teaspoon ground cloves
- 1/2 teaspoon salt
- 1 cup heavy cream, cold
- 1-1/2 pounds (three 8-ounce packages) cream cheese, room temperature
- 5 large eggs, room temperature
For Caramel Sauce
- For the Crust
- Preheat the oven to 325 degrees. Wrap a 9-inch springform pan twice with aluminum foil (preferably heavy duty). Take care to pull the foil all the way up the sides so that water cannot seep in from the water bath. Spray the bottom and sides of the pan with nonstick cooking spray. Pulse the crackers (or crumbs) and sugar in a food processor fitted with the metal blade until finely ground. Add the butter and pulse a few times to combine. Dump the moistened crumbs into the prepared pan and, using a measuring cup or glass, press into an even layer. Bake until fragrant and set, about 15 minutes. Cool on a wire rack while you prepare the filling.
For the Filling
- Bring about 4 quarts of water to a simmer in a tea kettle (this will be used for the water bath). In a small, heavy saucepan, stir together the pumpkin, sugar, cinnamon, ginger, nutmeg, cloves and salt. Over medium heat, bring the mixture to a sputter, stirring constantly. Reduce the heat to medium-low and cook, stirring constantly, for 5 minutes, until thick, bronzed and shiny. Scrape the mixture into a large food processor fitted with the metal blade and process for 1 minute with the feed tube open.
- With the motor running, add the cold cream. Add the cream cheese (cut into chunks) and process for about 30 seconds, scraping the sides if necessary, or until smoothly incorporated. Add the eggs and process for about 5 seconds or just until incorporated (do not overmix!).
- Set the cake pan in a large roasting pan. Pour the batter into the cooled crust, and then pour enough boiling water into the large roasting pan to come about halfway up side of the cake pan. Bake until the cake is just set, about 1-1/2 hours. If it jiggles, it's not done. CAREFULLY remove the roasting pan from the oven and set on a wire rack. Use a paring knife to loosen the cake from the sides of the pan. Cool until the water is just warm, about 45 minutes. Remove the springform pan from the water bath, discard the foil and set on a wire rack. Continue to cool at room temperature until barely warm, about 3 hours. Cover with plastic wrap and refrigerate until chilled, at least 4 hours or overnight.