From now to Jan. 2, Shake Shack is offering a buy-one-get-one FREE single ShackBurger at participating locations — with promo code THANKYOU21. The offer is only valid for purchases made on the Shack Shake app or at shakeshack.com for pick-up or delivery. Limit one time use per account for a maximum savings of up to $6.39.
You must add at least two (2) single ShackBurgers to your cart prior to checkout. The discount excludes paid add-ons, such as bacon, avocado, shallots, cherry peppers and gluten-free bun.
And, for a limited time, get a FREE shake for every $25 purchased in gift cards — click here.
This post was first published at Living on the Cheap. Used here by permission.