The sourness of most Chinese hot and sour soup comes solely from the vinegar added.
This particular recipe includes preserved vegetable and tomato, making the sour taste a bit more complex and interesting.
Do not use a tomato that is too ripe. It becomes too mushy. To peel the tomato, score the skin with a sharp knife and then blanch quickly in hot water. The skin will contract and curl away from the flesh.
I usually do not remove the tomato seeds but add them to the soup. It is up to you. I suggest removing only if you really do not like them or if you are serving the soup to the elderly or people with digestive issues.

picture of preserved vegetable
This type of preserved vegetable is actually made from a thick knobby stemmed mustard. The part that is eaten is the stem part. It is most commonly julienned thinly and used in soups or stir-fried with lean pork strips.
Ingredients
3 cups of water or soup stock
1/5 piece soft tofu
5 small pieces black fungus
50g lean pork
30g preserved vegetable / zha cai
1 slice ginger
1 egg, beaten
1 small tomato
1 tbsp cornstarch
2 tbsp cornstarch mixture
Cooking oil
Seasonings
2 tbsp black vinegar
1 tsp salt
1 tbsp sugar
1/5 tsp soy sauce
1 tbsp preserved bean paste
Pepper
Cooking wine
Garnish
1 stalk spring onion
Directions
- Clean and slice the lean pork into thin strips
- Marinate with wine, salt and cornstarch
- Soak the black fungus till soft
- Cut the black fungus, preserved vegetable, spring onion and ginger into thin strips
- Peel the tomato, remove seeds and slice into thin strips
- Cut the tofu into thin strips
- Combine the dark vinegar, soy sauce and pepper
- Heat the oil in a pot
- Add the preserved bean paste and fry quickly
- Add the lean pork strips and fry briefly
- Remove the pork strips and leave aside
- Add the soup stock into the pot and add the ginger, black fungus strips
- Bring the soup to a boil
- Add the tofu, preserved vegetable, pork strips and tomato
- Add the combined vinegar, soy sauce and pepper
- Bring the soup back to a boil
- Thicken soup with the cornstarch mixture
- Stream the egg in, using a pair of chopstick
- Remove from heat, garnish with chopped spring onion
- Serve hot
Want to use this recipe on your blog or online journal?
Go ahead but do include the text below. Highlight, copy and paste.






































