Chop the soup vegetables and sauté them in a little olive oil. Chop the garlic and add it. Peel and chop the potatoes and add to the soup after about two minutes of cooking.
Top up with vegetable stock and simmer for 20 minutes. Then puree part of the soup so that it is nice and creamy (note: not shown in the video).
Now chop the king oyster mushrooms and fry them in olive oil. Add the thyme and the crushed garlic. Finally, season with some finely chopped leek, pepper and salt.