Tongshan Street, Gulou District, Kaifeng City. Boiled dish, also known as cauldron dish, is the name of cauldron dish in Hebei and Henan dialects. It may be several completely different dishes. Different places have different practices, and the taste is of course completely different. Kaifeng Gourmet Liuan is cooked in Tongshan Street, Gulou District, Kaifeng City, and is widely recognized as a gourmet in Kaifeng City. The raw materials of food are beans, potatoes, lentils, pork and so on. Boiled for 3 hours.