Shake Shack Offers Free Big Shack with $10 Purchase Through December 7, 2025 and More

Shake Shack is offering a series of deals throughout December, starting with a free Big Shack with a purchase of $10 or more through December 7, 2025.

The Big Shack (pictured) is the chain's latest limited-time burger. It's a riff on a Big Mac that features two quarter-pound Angus beef patties, secret sauce, green leaf lettuce, two slices of American cheese, Roma tomatoes, thick-cut pickles, and onions, on three buttered and toasted potato buns for $9.99 (which makes the deal essentially a BOGO).

The free Big Shack deal is redeemable when placing an order, using the code "SHACKCHEER", at an in-restaurant kiosk, on the Shake Shack website, or on the Shake Shack mobile app.

Other "free menu item with a $10 minimum purchase" deals coming up this month include:

• 12/8/25 to 12/14/25 - Free SmokeShack burger.
• 12/15/25 to 12/20/25 - Free Chicken Shack sandwich.
• 12/21/25 to 12/31/25 - Free ShackBurger.

The same code applies to all the deals.

You can find other deals at Shake Shack on the "deals & specials" page.

Photo via Shake Shack.