Eat more antibiotic-free chicken, on Shake Shack. This football season they’re offering a FREE Chicken Shack with any $10+ purchase every Sunday through December.
Here’s how to redeem:
- Add a Chicken Shack and $10 worth of menu items to your bag
- Enter code CHICKENSUNDAY at checkout
- Enjoy your complimentary menu item!
*Valid every Sunday through December 28, 2025 only. Offer subject to change at any time.