Cheesedang Castella Yeonsinnae Main Branch is a dessert shop in Galhyeon-dong, Eunpyeong-gu, Seoul, selling cheese castella and cookies. The cookies, including a chocolate flavor, are not heavily sweet and have a texture that breaks apart easily. The cheese castella is heated in a microwave until the cheese melts slightly before eating. The menu writes the item as castella, not castella.