Heat the vegetable stock in the Thermomix bowl for 8 min/80℃/speed 1.5.
Remove ½ cup of the stock and mix it with the miso paste in a small bowl until smooth and lump-free. This helps prevent the miso from clumping in the soup.
Add the miso mixture, ginger, nori and spring onions to the Thermomix bowl and simmer for 6 min/80℃/speed 1.
Add the tofu and simmer for 2 min/80℃/reverse/soft speed.
Serve whilst it's still hot. This soup is best eaten fresh.
Notes
Stock: You can use either vegetable stock cubes such as Massel, the Thermomix vegetable stock concentrate or liquid stock from a carton.Miso Paste: Miso paste is widely available at the supermarket in the Asian food section. If you can't find white miso paste then use brown.Seaweed: Nori seaweed is used for rolling sushi and can also be found in the Asian food section of most supermarkets.