01 - Preheat oven to 320°F. Line the base of a 9-inch springform pan with parchment paper.
02 - Crush gingernut biscuits into fine crumbs using a food processor or sealed bag and rolling pin. Combine with melted butter until fully mixed.
03 - Press crumb mixture firmly into the base of the prepared pan. Refrigerate while preparing the filling.
04 - In a large bowl, beat cream cheese and brown sugar until smooth and creamy.
05 - Add eggs one at a time, beating well after each addition.
06 - Add sour cream, flour, ground ginger, cinnamon, nutmeg, cloves, salt, molasses, and vanilla extract. Mix until just combined.
07 - Pour filling onto chilled base and tap pan gently to release air bubbles.
08 - Bake for 55 to 65 minutes until edges are set but center remains slightly wobbly.
09 - Turn off oven, leave door ajar, and let cheesecake cool inside for 1 hour to prevent cracking.
10 - Refrigerate for at least 4 hours or overnight until fully set.
11 - Before serving, spread or pipe whipped cream over cheesecake and garnish with mini gingernut cookies or crushed gingernuts.