Index Caramel is a cafe on the first floor of Seongsu Yeonbang in Seongsu, Seoul, selling handmade caramels in several flavors and coffee. The caramels are made in a factory on the second floor and served paired with coffee. There are not many coffee seats inside the shop, so visitors use the tables in front of Seongsu Yeonbang or take their order out. The caramels are on the expensive side.