Shake Shack Jonggak

Shake Shack Jonggak is on the first floor of Gran Seoul at Jonggak Station in Seoul, selling hamburgers and milkshakes. The signature combination is a double-patty Shake Burger on a soft potato bun with a milkshake and fries. Beer cannot be ordered at the kiosk because of age verification. Heavy foot traffic leads to a wait and a shortage of seats.