Shake Shack Buy One, Get One Free ShackBurgers Through January 2, 2022

Shake Shack is offering a buy one ShackBurger (single only, unfortunately) and get one free deal now through January 2, 2022.

This deal is good on pickup and delivery orders…doesn’t appear you can order at the counter and get this BOGO deal.

You’ll need to log in to your Shake Shack account

Select “Order Now”

Add 2 ShackBurgers (singles) to your order

Input the Promo Code: THANKU2021 or THANKYOU21 in the cart at checkout

Discount will show at checkout

There’s also an Amex Offer available on many accounts that’ll save $5 off a Shake Shack purchase of $15 or more.  Add the Offer to your American Express card and use it to pay to save even more.  That’s if your purchase total will hit the minimum.