Preheat the oven to 350F. Place your cookies in a food processor or blender and grind them until they are fine crumbs. Alternatively, you can put your cookies in a gallon-size plastic bag and crush the cookies with a rolling pin until fine.

Next, place your cookie crumbs in a medium bowl. Add the espresso powder, salt, and melted butter. Mix until well combined.

Pour your cookie mixture evenly into a 9-inch or 10-inch springform pan. Press the crumbs down along the bottom and sides of the pan to form the crust. Be sure to pat the crumbs evenly. Alternatively, you can use the back of a measuring cup or spoon to pat the crumbs and form the crust.

Bake the crust for 10 minutes. Once done, remove from oven and set aside. Then, reduce the oven to 325F.