Slaughter the chicken, remove the hair and internal organs, wash, chopped into 1 inch square block, into the boiling water pot scalded for 3 minutes and fished out, wash the blood foam, loaded into the gas pot, add green onion, ginger, salt, Sichuan pepper, monosodium glutamate, and then add the yellow essential oil, ginseng, Chinese yam, covered with the lid of the steamer, steam the cage for 3 hours into.