This was one of my mom's recipes. I believe she originally got it from a Buffalo, NY radio station. She wrote "really smooth texture" in the margin of the page. I am thinking she enjoyed it. The original recipe calls for a graham or cookie crumb crust baked in a 9" springform pan, but I am sure you can use a pre-made deep dish graham crust. NOTE: Cooking time does not include time to make the graham crust (if you decide to do so) OR freezing time.