Preheat oven to 325°F (160°C). Line the bottom of a 9-inch springform pan with parchment paper.
In a bowl, combine crushed Biscoff cookies and melted butter. Press the mixture firmly into the bottom of the prepared springform pan to form the crust.
Bake the crust for 10 minutes. Remove from oven and let cool slightly.
In a large bowl, beat the softened cream cheese until smooth. Gradually add the granulated sugar and beat until well combined.
Beat in the eggs one at a time, mixing until just combined after each addition. Stir in the heavy cream and vanilla extract.
Pour the cheesecake filling over the prepared crust.
Bake for 50-60 minutes, or until the edges are set and the center is slightly jiggly.
Turn off the oven and leave the cheesecake inside with the door ajar for 1 hour to cool gradually. This helps prevent cracking.
Remove the cheesecake from the oven and let it cool completely on a wire rack. Then, cover and refrigerate for at least 4 hours, or preferably overnight.
To make the topping, gently warm the Biscoff spread in a microwave-safe bowl or over a double boiler. Stir in the heavy cream until smooth and glossy.
Pour the Biscoff topping over the chilled cheesecake, spreading it evenly. Sprinkle with crushed Biscoff cookies.
Slice and serve.
Notes
For best results, ensure all dairy ingredients are at room temperature before starting the cheesecake filling.