Crush the Biscoff cookies into fine crumbs.
Mix the cookie crumbs with melted butter until well combined.
Press the mixture into the bottom of a springform pan to form the crust.
In a bowl, beat the cream cheese until smooth.
Add powdered sugar and mix until fully incorporated.
In a separate bowl, whip the heavy cream until stiff peaks form.
Fold the whipped cream into the cream cheese mixture gently.
Add the Biscoff spread, vanilla extract, and salt, mixing until smooth.
Pour the cheesecake filling over the crust, smoothing the top.
Chill in the refrigerator for at least 4 hours or overnight to set.