2. Cook the chicken wings in boiling water for about 3-4 minutes before putting them into the pressure cooker to remove the fishy smell of the chicken wings. Then put water, codonopsis pilosula, red dates, mushrooms and other accessories into a pressure cooker and steam for about 10 minute. Because it has been cut off, the chicken wings will soon be cooked, and you can sprinkle chopped green onion as an ornament when you put them on the plate.