Shake Shack—the fast-casual restaurant chain thought to have one of the best damn burgers on the market—started as a lowly hot dog cart in New York City's Madison Square Park in the early-Aughts. By 2004, the Danny Meyer-led burger joint had a permanent kiosk in the park, with lines winding down East 23rd Street. And now, some 12 years later, the restaurant chain is all grown up, preparing to open its 100th outpost at the Boston Seaport on Tuesday, August 16.
In honor of the occasion, and as a showing of gratitude to its customers, Shake Shack will be giving away 100 free Shack Burgers at all of its locations worldwide. The giveaway begins at 10:30 a.m. on Tuesday at each restaurant—excluding outposts located in stadiums and ballparks—and will run until noon.