Steps:
1, ribs washed with water for use.
2, fresh lotus seeds go to the lotus seed core, water chestnuts and figs are washed, and ginger slices and onions are tied into knots.
3. Put the ribs, onion knots, ginger slices and figs into the pot and inject water.
4. Pour in vinegar and bring to a boil.
5. After boiling, remove the onion knots and turn to low heat for one hour.
6. Add water chestnut and lotus seeds, boil and turn to low heat for 40 minutes.
7. Finally, add salt to taste.
8. After seasoning with salt, you can eat it out of the pot.