Dongu Hwangtae Bukeoguk is a hangover soup restaurant on the basement first floor of the Hanwha Securities Building on Yeouido-daero, Yeongdeungpo-gu, Seoul. It serves a single menu item, bukeoguk, made with a large amount of tofu, and the soup and side dishes can be refilled. On weekday lunchtimes the wait is usually about 15 minutes, and the restaurant opens early in the morning and closes after the lunch service. The shop and its seating are small.