BOSTON (CBS) – Head over to a Shake Shack Tuesday for an early lunch, and you might get yourself a free burger.
The 12-year-old burger chain is marking the opening of its 100th restaurant, located at 77 Seaport Blvd. in Boston, by giving away a free single ShackBurger to the first 100 guests at Shake Shacks everywhere.
Shake Shacks will open Tuesday at 10:30 a.m.
Massachusetts Shake Shacks can also be found on Newbury Street, and in Chesnut Hill, Harvard Square and at Legacy Place in Dedham.
for more features.