1. Materials: 3-4 kg of old duck, 0/2-15 pieces of astragalus, 5-6 pieces of codonopsis pilosula, etc. Lycium barbarum, 5 or 6 Chinese dates, ginger 1-2 tablets, salt and chopped green onion.

2. Wash and drain the old duck, put a proper amount of water in the pot, pour in the duck and cook until the water boils, then pour out the water.

3. Wash the above materials for later use, put water into the pressure cooker and the blanched old duck, then add salt, washed Radix Codonopsis, Radix Astragali, Fructus Jujubae, Fructus Lycii and appropriate amount of shredded ginger in turn, cover the pressure cooker, and simmer for 35-40 minutes with medium fire after the pressure cooker is inflated.

4. At the same time, take another pot of steamed duck blood, turn off the fire for about 15 minutes, and drain. After the old duck is cooked, pour in the steamed duck blood and cook for about 2 minutes. Turn off the fire, put it on a plate and sprinkle with chopped green onion. It's not fishy at all The soup is tender and delicious.