Time Out says
Just follow the crowds and the aroma of fried dough. The uber-popular bakery has made waves from day one, turning out inimitable flavors like maple bacon, berry pistachio and sea salt bourbon caramel. Having grown into a larger space, Union Square Donuts has evolved to serve even more quick-to-sell-out options, including donut holes and vegan versions. For a dynamic, buzzy environment in which to enjoy the city's finest donuts, stop by the USD outlet at Time Out Market Boston.
20 Bow St
|Cross street:||Somerville Ave|
|Transport:||Bus 85, 87|
|Opening hours:||Daily 7am-6pm|