1. Soak the cowboy bones in water for more than half an hour
2. Then blanch it in boiling water to wash off the foam
3. Put an appropriate amount of soy sauce in the pot
4. After adding cooking wine and appropriate amount of water
5. Add ginger and spices and start cooking over high heat
6. Cook on high heat for 15 minutes, then turn to medium heat
7. Cook for another 30 minutes, add rock sugar, and start collecting juice
8. When the soup is almost collected, you can start the pot
Tips:Be sure to soak the bleeding fluid with clean water at the beginning
