"Available at all locations starting September 20, Union Square Donuts is featuring its Fluffernutter doughnut. Brioche-inspired doughnut dough is stuffed with Fluff, dipped in a peanut butter glaze, drizzled with more Fluff, and topped with Fluffernutter cookie crumbles. Preordering and same-day ordering is available here for pickup at the Somerville and Brookline locations; find a variety of pickup and delivery options from the Time Out Market Boston location here." - Rachel Leah Blumenthal