01 - Preheat oven to 350°F. Grease a 9-inch springform pan and line the base with parchment paper.
02 - In a medium bowl, combine gingersnap crumbs, melted butter, brown sugar, and cinnamon. Press mixture firmly into the bottom of the prepared pan. Bake for 10 minutes, then cool.
03 - Reduce oven temperature to 325°F.
04 - Beat cream cheese and sugar together in a large bowl until smooth and creamy.
05 - Add sour cream, then eggs one at a time, mixing on low speed after each addition.
06 - Blend in molasses, ginger, cinnamon, nutmeg, cloves, salt, and vanilla extract. Mix gently until combined without overmixing.
07 - Pour the filling over the cooled crust and smooth the surface.
08 - Bake for 55 to 65 minutes until the center is set but slightly wobbly.
09 - Turn off the oven, crack the door, and let the cheesecake cool inside for 1 hour.
10 - Remove from oven and cool completely at room temperature. Refrigerate for at least 4 hours or preferably overnight.
11 - Top with whipped cream and gingerbread cookies, if desired.