Shake Shack is definitely known for its juicy burgers, fries and, of course, shakes. And, for a limited time, customers can scare up big savings on the Double ShackBurger at the popular restaurant.

The Double ShackBurger is made with two quarter-pound 100% Angus beef patties, American cheese, lettuce, tomato and ShackSauce, on a buttered and toasted potato bun.

From Oct. 22 to 31, 2025 , Shake Shack is offering a buy-one-get-one FREE Double ShackBurger at participating locations — with promo code SPOOKY . (Be sure to use ALL CAPS, as that’s the only way the promo code will work.)

The offer is only valid for qualifying orders placed at a kiosk in-restaurant or for delivery or pick-up via the Shake Shack app or at shakeshack.com .

You must add at least two Double ShackBurgers to your car

See Full Page