Free Burgers at Shake Shack for National Hamburger Month

From May 1 through June 1, Shake Shack customers can get a free burger with a $10 or more purchase.

A new burger will be offered each week of National Burger Month.

  • 5/1 – 5/11: SmokeShack
  • 5/12 – 5/18: Bacon Cheeseburger
  • 5/19 – 5/25: Avocado Bacon Burger
  • 5/26 – 6/1: ShackBurger

https://shakeshack.com/blog/local-news/national-hamburger-month-is-here#/

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