What: Shake Shack is giving away free MeisterShack burgers (cheeseburgers with ale-marinated shallots and ShackSauce) as a thank you for being named the best "Nouveau Fast-Food Burger" in Boston Magazine's reader poll. 100 free burgers will be available each day — first come, first served. After that, they're $5 (single) or $6.50 (double).
Where: Shake Shack in Chestnut Hill (49 Boylston Street) and Harvard Square (92 Winthrop Street)
When: This Saturday and Sunday, August 9 and 10, 2014
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