The town of Daokou in Slide County, north of Henan Province, is known as the home of roast chicken. A restaurant in the United States, the Chinese manager Lu De, had tasted Daokou roasted chicken, he praised Daokou roasted chicken fat and not greasy, fresh color and taste, eat without a knife, with a hand shake, the bones of the meat separated on their own. Whether hot or cold, are full of flavor. To this day, the memory of it, still salivating.

Daokou roast chicken has a history of more than three hundred years, the founder called Zhang Bing. He opened a small barbecue chicken store in the town of Daogou Dajie Street, because the production is not law, business is sluggish. One day an old friend who had worked as a royal chef in the Qing Palace Imperial Kitchen came to visit, and he was very skillful. The two men met again after a long time and had a drink. Zhang Bing asked him for advice, the friend then told him a secret recipe: "To roast chicken flavor, eight ingredients plus old soup." The eight ingredients are Chenpi, cinnamon, cardamom, ginger, cloves, sand nuts, grass nuts and angelica dahurica; the old soup is the old soup in which the chicken is cooked. Every time you cook a pot of chicken, you must add the old soup of the first pot, and so on, the older the better. Zhang Bing as the method, made the chicken really fragrant. From then on, business is booming, Bing Zhang named his roast chicken store "Yi Xing Zhang".

"Yixing Zhang" brand after playing, Zhang Bing repeated practice, in the selection of chicken, slaughter, support type, cooking, soup, fire, etc., to find out a set of experience. He is strict in the selection of chickens, to choose the tender chicken within two years to ensure the quality of chicken meat. Picked chicken, to leave a period of time waiting for slaughter, so that the chicken to eliminate tension, to restore normal physiological functions, is conducive to killing the chicken to fully bleed, but also does not affect the color of the chicken. Dosing and cooking are the most critical processes. Put the fried chicken in a pot, pair up the old soup, match the seasonings, boil it with martial arts fire, and then cook it slowly with civilized fire. The shape of the roasted chicken is even more original. After the chicken body is cut open, a piece of sorghum pole is used to hold the chicken open, forming a semicircle with two pointed ends, which is chic and beautiful. "Yixing Zhang" opened nearly three hundred years ago, Zhang Bing's roast chicken technology has been passed down from generation to generation, always maintaining a unique flavor, its color, aroma, taste, rotten is known as the "four best".

Whenever the Chinese New Year is approaching, in Slide County, the origin of Daokou roasted chicken, the first thing the locals do is to buy the roasted chicken in Daokou. Every time, roast chicken stalls in front of a long queue, the scene of the rush, but it is this has a long history of more than 300 years of China's oldest, once upon a time was also sent to the national banquet, why in the current wave of market opening can not usher in a ray of industrialization? The pain of the early days of reform and opening up, the production and operation of Daokou roast chicken only a few state-owned enterprises, due to the market competition at that time is not yet sufficient, generally from the government underwritten, so the order amount of these enterprises peaked up to hundreds of millions of dollars.