1/4 cup dark rum
1 packet (2 teaspoons) unflavored gelatin powder
1 (15-ounce can) pumpkin (not pie filling)
1/2 cup granulated sugar
1/2 cup light brown sugar, lightly packed
2 extra-large egg yolks
2 teaspoons grated orange zest
1/2 teaspoon ground cinnamon
1/4 teaspoon ground nutmeg
1/2 teaspoon kosher salt
1 1/2 cups cold heavy cream
1 1/2 teaspoons pure vanilla extract
Sweetened whipped cream
8 to 10 chopped ginger cookies
Crystallized ginger, for decoration, optional