Crush the Biscoff biscuits and mix with melted butter. Press into the base of a tin and chill in the fridge.
In a bowl, combine double cream, cream cheese, and Biscoff spread. Whisk until thick (like ice cream).
Remove the biscuit base from the fridge and spread the cheesecake mixture on top. Smooth the surface.
Refrigerate for at least 3 hours, or overnight for best results.
Before serving, gently melt the Biscoff spread in a pan (don’t let it get too hot).
Remove the cheesecake from the fridge, and pour the melted Biscoff over the top.
Smooth the Biscoff topping with a spoon and sprinkle crushed biscuits around the edge.
Refrigerate for another hour, or serve sooner for a less neat but still delicious cheesecake.