Supplement:
There is a bowl of steaming fresh soup on the dining table, which often makes people drool, especially in winter and spring. Soup can not only help people keep warm, but also make people have an appetite. Protein-rich animal raw materials are often used in soup, preferably cattle, sheep, pig bones and chicken and duck bones. The method is as follows: firstly, wash the raw materials, add enough cold water once, boil with strong fire, then switch to low fire for 20 minutes, skim off the foam, add ginger, cooking wine and other seasonings, boil the water again, and continue to cook for 3-4 hours with medium fire, so that protein in the raw materials can be dissolved more, and the soup is thick and milky. After cooling, it can be regarded as the boiled soup.