1. Ingredients: iron stick yam (washed, peeled and cut open), chicken feathers (washed), tube bones (washed and blanched)
2. Put the blanched bone into the pressure cooker.
3. Afterwards, add some clean water.
4. Add the right amount of cooking wine.
5. Cover the lid and cook for 20 minutes on medium-low heat, then turn off the heat.
6. Open the lid after simmering until exhausted.
7. Then, add the cut iron rods and turn the yam to a boil and cook for 6-7 minutes.
8. Then, turn the washed chicken feathers to a boil and cook for 2 minutes.
9. Finally, add the right amount of salt.
10. Add the right amount of MSG.
11. Season to mix and serve.
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