In a medium bowl, combine 1 ¾ cups chocolate cookie crumbs, ½ stick melted butter, and 3 tablespoons sugar. Stir until the crumbs are evenly moistened and hold together when pressed.
Press the crumb mixture firmly and evenly onto the bottom of an 8-inch springform pan. Pack it down flat and compact so the crust is uniform.
Bake the crust on the middle oven rack for 10 minutes. Remove from the oven and place the pan on a wire rack to cool to room temperature (about 20–30 minutes) while you prepare the cheesecake filling (filling ingredients are not included in the ingredient list).
If your springform pan is not watertight and you will bake the filled cheesecake in a water bath, wrap the outside of the pan with heavy-duty aluminum foil before adding the filling. Wrap the bottom and sides at least twice and press the foil snugly so water cannot seep in.
When the pan is filled (follow your cheesecake filling recipe for amounts and baking time), set the wrapped springform pan into a larger roasting pan. Pour hot water into the larger pan to reach about 1½ inches up the sides of the springform pan to create a water bath, then bake the filled cheesecake according to your filling recipe’s instructions.
After baking the filled cheesecake, lift the springform pan out of the water bath and place it on a wire rack to cool. Remove the foil (if used) once the pan is cool enough to handle. Refrigerate the cheesecake as your filling recipe directs before slicing and serving.
Notes
Filling ingredients and baking times for the filled cheesecake are not included; follow your chosen cheesecake filling recipe for those details.