1. Put the big bones in the soup pot, add water, blanch
2. Remove the blanched big bones, wash them, and put them in a clean saucepan
3. Add green onion, sliced ginger, star anise
4. Add the right amount of water
5. Bring to a boil, turn to medium and low heat and simmer for 1 hour
6. Finally add salt to taste
7. Put it in a soup bowl and start drinking.
Tips:After the big bones have been blanched, wash them several times with running water.
