FATTYBURGER is a hamburger restaurant in Seoul that serves American-style handmade burgers and smash burgers. Its menu includes the Double Cheese and the signature Bibi Burger, along with classic-style and local-style burgers, and the patties are thick with a moderate amount of juice. The patties have no gamey smell and the buns are grilled well with oil, so the basic combination of the burger is clear. It has been open for only a few months, so the interior is clean.