Kim Dulle Sundaeguk is a sundae restaurant in Sangam-dong, Seoul, that serves sundae-guk alongside gamjatang and beef head rice soup. The sundae-guk broth comes with dried radish greens and is light and clean, and barley tea is served as the water to finish the aftertaste. At lunchtime, office workers in Sangam-dong line up, and the restaurant opens early in the morning for an early meal. Food prices are on the high side.