The cooking time for vegetarian dumplings is about 10-12 minutes. If the dumplings are larger or thicker, extend the cooking time a little. Add the vegetarian dumplings to the boiling water and wait until the dumplings float to the surface and then cook for another 12 minutes before serving. When cooking the dumplings, use enough water so that the dumplings don't stick together. You can add some oil to the water to prevent the dumplings from sticking.