Variations of these little dumplings are popular throughout China. They symbolize abundance and wealth for the coming year, as they are made in large amounts and, when fried golden, represent coins. In northern China they are served in the hours between the old and new year. These may take some time to prepare, but gather a few friends to help assemble the potstickers. Cook two dozen for your party, and freeze the extras for future snacks or meals. Simply pop the extra, uncooked dumplings in a heavy-duty zip-top plastic bag.