Pumpkin Cream Pie in a Chocolate Crust

Name: Pumpkin Cream Pie in a Chocolate Crust
Ingredients: 8 ounces chocolate wafer cookies (33 cookies); 1 stick unsalted butter (melted); 2 tablespoons sugar; 1 pure pumpkin puree (5-ounce can); ¾ cup heavy cream; 2 eggs (large); 1 tablespoon bourbon (brandy or apple cider); ½ cup light brown sugar (packed); 1 teaspoon fresh ginger (finely grated peeled); 1 ½ teaspoons ground ginger; 1 ½ teaspoons ground cinnamon; ½ teaspoon fine sea salt; ¼ teaspoon nutmeg (grated); ⅛ teaspoon allspice (ground); 1 cup crème fraîche; ½ cup heavy cream; 2 tablespoons confectioners sugar; Chocolate curls (see Note for garnish)