How-to Make a Crumb Crust for Cheesecakes
Place cookies or crackers in a heavy-duty resealable plastic bag. Seal bag, pushing out as much air as possible. Press a rolling pin over the bag, crushing the cookies or crackers into fine crumbs. Or, process cookies and crackers in a food processor.
Use a flat-bottomed measuring cup or glass to firmly press the prepared crumb mixture onto the bottom (and up the sides if recipe directs) of a springform pan.