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Shake Shack Sundays: free sandwich with $10+
Sundays through Dec 27 in the Shake Shack app or website (pickup or delivery), not third-party apps. Free Chicken Shack, Single ShackBurger, 6pc Bites or WC Chicken Sandwich.
Shake Shack$10+ ordersSundaysEnds Dec 27
Unlock codeChecked Nov 3