Ildeung Sikdang is a Seoul restaurant in Mapo-gu that serves bone hangover soup as a single-item menu. The clear, mild doenjang-style broth comes with plenty of ugeoji and pork spine bones, and the meat is boiled until it slides off the bone easily. At lunchtime the turnover is fast even when customers crowd in, so the wait stays short, and going around 11:30 is better. The broth is not strong, so it may taste plain to those looking for a heavy hangover soup.