Tosok Sundaeguk is a sundae guk restaurant in Seoul that makes its own seonji sundae in-house. The sundae guk is served with a generous amount of seonji sundae and meat, with scallions added on top. The sundae has a high blood content and a firm texture, while the meat is soft. The broth is clean, and the kimchi and kkakdugi are cool and crisp.