Ingredients: 300 grams of old hen; 250 grams of yam; Ginger; Onions; A little sesame oil; A little pepper.

Wash and chop the old hen, peel and cut the yam into thick slices, slice the ginger and cut the onion into sections. Put the cut old hen, yam and ginger slices into a pressure cooker and add a proper amount of water. At least the water can't completely touch the chicken. If you like soup, you can add more water.

Add a few drops of sesame oil, add a little pepper, cover the pot, steam in the pressure cooker and turn to low heat for 20 minutes. After the air in the pressure cooker is exhausted, open the lid, add some salt and sprinkle with chopped green onion.