To make an Oreo cookie crust, crush 24 Oreo cookies into fine crumbs, and mix with 1/4 cup melted butter until well-blended. Press the Oreo mixture into the bottom and sides of a pie plate, and place in the refrigerator to chill.
To make the Oreo cookie crumbs, place the cookies in a food processor, and pulse to get the most fine, consistent crumb. If you don't have a food processor, crush the cookies by hand by placing them in a sealable plastic bag and going over them with a rolling pin. Hit the bag a few times with the pin to break the cookies into small chunks, then roll over the bag repeatedly with the pin to crush the crumbs as much as possible. To get the crumb and butter mixture to stick to the pie plate, use the bottom of a dry measuring cup to press the crumbs into the plate.
Use an Oreo cookie pie crust for a variety of no-bake pies that only need to be refrigerated. These include no-bake cheesecake, peanut butter pie, no-bake banana cream pie and chocolate icebox pie. You can also use them for ice cream pies, such as cookies-and-cream and mint chocolate chip pies.