Napa cabbage
Haejang-guk (, 解酲-) or hangover soup refers to every kind of "guk" or soup eaten as a hangover cure in Korean cuisine. It means "soup to chase a hangover" and is also called "sulguk" (). It usually consists of dried Napa cabbage, vegetables and meat in a hearty beef broth. One type of haejangguk, Seonjiguk, includes sliced congealed ox blood (similar to black pudding) and another type, Sundaeguk includes a kind of blood sausage made with intestine stuffed with pig's blood and other ingredients.