Boss Burger sits in a back alley of the academy district near Hanti Station in Seoul. It serves American-style handmade burgers, building the Double Boss Burger and Single Boss Burger with U.S. sirloin patties, potato buns, shredded cabbage and other vegetables, grilled to order. Ordering at the kiosk gets burgers, fries and onion rings fried fresh. The portions are large, so leftover side items end up as takeout.