Shake Shack wants to end the year on a high note, so they’re offering a buy one, get one free ShackBurger deal through January 2, 2022.
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To take advantage of the offer, simply grab a single ShackBurger in the brand’s app or online with promo code “THANKYOU21,” and you’ll qualify for a second ShackBurger for free.
The brand’s signature ShackBurger features a pure beef patty topped with cheese, lettuce, tomato, and ShackSauce on a toasted potato bun.
Shake Shack’s BOGO ShackBurger promotion is valid at participating Shack locations nationwide through January 2, 2022.
Image via Shake Shack