Maoxuewang (Spicy Duck Blood & Pork Tripe Casserole) is a famous dish from Chongqing, China. It was created by a couple in Ciqikou, Chongqing, in the 1940s. Its main ingredients are duck blood and pork tripe, accompanied by side dishes such as luncheon meat and bean sprouts. It is simmered with various hot pot seasonings, offering a fragrant, fresh, numbing, and spicy flavor.