Method

1. put the oil in a wok and fry zinger and spring green onions about 30 sec.
2. add the pork and stir fry till cooked about 5 minutes.
3. Now put the black mushrooms, lily bud and cabbage.
4. Now add the tofu, stock, soya sauce, vinegar, salt and pepper and give a boil to soup.
5. Dilute the cornstarch with water together and add to the soup, stirring constantly.
6. Now add the eggs to the soup, but not boil it.
7. Finish it with sesame oil, garnish with green onions and serve it hot.