Sapper Coffee is a roastery cafe in Seoul that sells specialty coffee and cake. It sits in an alley near Bangju Church in the Isu Station commercial area of Bangbae-dong, Seocho-gu. Beans are roasted in-house, so customers can choose between acidic and nutty options, and latte art is served as well. Basque cheesecake and vanilla latte are the signature items, made with oat milk and vanilla syrup prepared in-store.