In a medium-sized mixing bowl, combine the crushed gingerbread cookies, melted butter, and brown sugar. Mix until the mixture resembles wet sand and press into the bottom of a 9-inch springform pan.
In a large mixing bowl, beat the softened cream cheese with an electric mixer on medium speed until smooth. Gradually add in the granulated sugar, mixing until well blended.
Incorporate the eggs one at a time, mixing on low speed until combined after each addition.
Fold in the sour cream, vanilla extract, ground ginger, cinnamon, nutmeg, and allspice with a spatula until smooth.
Pour the cheesecake filling over the prepared crust and bake for 50-60 minutes until the center is set but slightly jiggly.
Turn off the oven and crack the door open slightly. Allow the cheesecake to cool in the oven for about an hour.
Transfer the cheesecake to the refrigerator and chill for at least 4 hours, preferably overnight.
Before serving, dollop with whipped cream, top with crushed gingerbread cookies, and sprinkle with ground cinnamon.
Notes
For an elegant touch, serve slices on dessert plates with a sprig of fresh mint or a cinnamon stick alongside for a rustic holiday flair.