Gyeongbokgung Gaeseong Son Mandu Dasan is a Korean restaurant in Namyangju that specializes in kimchi mandu jeongol. Large kimchi dumplings are folded by hand next to the entrance, and a mildly spicy vegetable broth is served with them. The house order is to eat the jeongol, then cook kalguksu in the remaining broth and finish by boiling rice porridge with dumplings held back for that step. The broth can become saltier the longer it boils.