Jeontong Baegam Sundaeguk is a sundae guk restaurant behind Samseong Station and COEX, in the food alley, serving sundae guk, sulguk, and modum sundae. The teuk sundae guk comes with plenty of meat and offal, and is eaten with a generous amount of deulkkae powder. It opens in the morning and still serves lunch as late as 3 p.m., and rice refills are free. The dadagi seasoning is already in the broth, so diners mix it in themselves.