auxiliary materials: appropriate amount of oil, appropriate amount of vinegar and appropriate amount of soy sauce
Steps:
1. Prepare for coupling.
2. bring the water to a boil.
3. Put some soy sauce and vinegar in the water.
4. put the coupling into the pot.
5. stew coupling is done.
Tip:
When coupling pendulum, each coupling should be dipped into the water, and do not overlap. This way, each coupling tastes good.