You can freeze the uncooked pork potstickers by laying them out on a flour-coated or parchment-lined tray and freeze them for at least 4-5 hours or until frozen. Then you can place them in an airtight container or freezer-safe bag for up to 3 months. This will prevent the pork and cabbage dumplings from sticking together when you freeze them. To reheat simply pan fry them from frozen you do not need to thaw them.