1. Wash the ribs first and control the moisture. Don't put oil in the pot. When the fire reaches 30% heat, add the ribs, keep the fire in the middle and start to stir fry;

2. Stir-fry the ribs until they begin to change color, and water slowly appears. Turn off the fire and continue to stir fry. Until all the water is dried by hand;

3. Add brown sugar and soy sauce and stir well;

4, add hot water, the amount of water is subject to the ribs, and then add onion, ginger, dried pepper, star anise and tsaoko in turn, and boil the soup on medium fire;

5, then turn to low heat, cover and simmer for 40 minutes, pay attention to the change of soup during this period, and stir fry for 4-5 times;

6. The soup is getting thicker. After the ribs are soft and rotten, turn to high fire to dry all the remaining soup and stir fry quickly. Pour in balsamic vinegar before cooking and stir well.