"10-15 minutes" Frozen dumplings are quick-frozen at low temperatures, so they are as hard as a rock when you take them out. Therefore, it takes about 10-15 minutes to cook such frozen dumplings, which takes longer than freshly wrapped dumplings. So when you cook frozen dumplings, you can't cook them as long as you cook fresh dumplings, you must have patience until the dumplings are cooked."