01 - Preheat oven to 350°F. Line the bottom of a 9-inch springform pan with parchment paper.
02 - Combine crushed ginger snap cookies, melted butter, brown sugar, and cinnamon in a medium bowl. Mix until evenly moistened.
03 - Press the mixture firmly into the bottom of the prepared pan. Bake for 10 minutes, then set aside to cool slightly.
04 - Reduce oven temperature to 325°F.
05 - In a large bowl, beat cream cheese and brown sugar until smooth and fluffy.
06 - Add eggs one at a time, beating well after each addition.
07 - Mix in sour cream, heavy cream, molasses, vanilla extract, spices, and salt. Beat until just combined without overmixing.
08 - Pour the cheesecake filling over the cooled crust and smooth the top with a spatula.
09 - Place pan on a baking sheet and bake for 50 to 60 minutes, until edges are set but center remains slightly wobbly.
10 - Turn off oven, crack oven door, and let cheesecake cool inside for 1 hour.
11 - Remove cheesecake from oven, cool to room temperature, cover, and refrigerate for at least 4 hours or overnight.
12 - Before serving, optionally garnish with whipped cream and gingerbread cookies.