Crush Biscoff cookies in a food processor until fine, or place cookies in a zip-top bag and crush with a rolling pin.
Combine cookie crumbs and melted butter in a bowl, stirring until evenly moistened.
Press the mixture firmly into the bottom and up the sides of a pie plate or 8–9 inch springform pan. Use a flat-bottomed measuring cup to compact it evenly.
For a no-bake crust, chill for 10–20 minutes before filling.
For a baked crust, bake at 350°F (175°C) for 8–10 minutes, then cool completely before adding your filling.
Notes
For a firmer crust, bake before filling.
To make mini crusts, divide crumbs among lined muffin tins.
Swap 1 tablespoon of butter for cookie butter for extra Biscoff flavor.
Either salted or unsalted vegan butter works fine.