Shake Shack: Spend $10 or more, Get SmokeShack Cheeseburger (Single or Double) Free via Mobile Order, Online or in-Shack at kiosk

Shake Shack offers a SmokeShack Burger (Single or Double) for Free when you Spend $10 or more and apply promo code BESTINSHACK via Mobile Order (iOS or Android), Online or in-Shack through a kiosk.