Boil stock and water with ginger, garlic, and onion for about 10 minutes.
Add meat and salt + aminos, cook for another 5 minutes.
Add seaweed, scallions, cabbage, egg, and dumplings. If the dumplings are fresh, only need to cook for a couple minutes (if frozen, cook for 5 mins or so - don't overcook or they may fall apart).