Ttaengine is a dumpling shop at the entrance of Cheongnyangni Market, behind Hyeondae Coa, selling dangmyeon yaki mandu. It serves old-style gun mandu fried to order, eaten dipped in tteokbokki broth. The shop supplies dumplings wholesale to snack bars and also sells to individuals, handing out one or two as a sample. It takes cash only.