Pay attention to blanch the beef in the pot first, and be sure to add boiling water when stewing. If you want a strong flavor, add a tablespoon of tomato sauce. Tomato and potato beef soup tastes very sour with tomatoes, which is appetizing and delicious. In the variety show "Life I yearn for", Huang Lei once made such soup, which made the audience in front of the TV so greedy that they couldn't help trying it. In fact, the production method is really simple, and novice Xiaobai can easily complete it.

Let's cut the beef into small pieces, boil it in a pot with cold water, take it out, wash it with warm water and put it aside. Put the blanched beef in a pressure cooker, add onion, ginger, cooking wine and enough boiling water, cover the pot and stew for half an hour. Add a little oil to the pot, stir-fry ginger and garlic, cut tomatoes and potatoes into hob pieces, add a tablespoon of tomato sauce, cooked beef and tomato pieces into the pot, and stir-fry a few times.

Pour the freshly cooked beef soup into the pot. If the soup is already cold, it is best to heat it separately to prevent the beef from burning due to heat expansion and cold contraction. The amount of soup should be just below the ingredients. If there is too much water, it will lead to a weak taste. After the fire boils, add oyster sauce, soy sauce and edible salt to taste, and finally add potatoes and cook for about 10 minute. Although this dish is called tomato and potato beef soup, we can also add other favorite side dishes, such as a handful of Flammulina velutipes, which can not only refresh the taste, but also make this soup more nutritious.

After cooking, we sprinkled a handful of chopped green onion on it, and the rich tomato and potato beef soup was ready. The reason why beef is stewed separately is to maximize its flavor, and the extra beef soup can also be used to make other dishes. Don't leave the potatoes too long, or the whole plate will be burnt. If you like thick soup, you can also hook a thin one with water starch.