Anyone familiar with the sugary sweetness that wafts across a small town on Martha’s Vineyard most summer nights can soon get their fix on Boston’s Lansdowne Street.

Back Door Donuts, a beloved bakery and doughnut shop in Oak Bluffs, announced Friday it will open a late-night pop-up in partnership with Loretta’s Last Call. Starting March 15, the pop-up will serve doughnuts from 7 p.m. to 2 a.m. nightly at 1 Lansdowne St.

The doughnut shop, officially called The Front Bakery Cafe, has a speakeasy-like doughnut and apple fritter operation that runs nightly out back during the summer season on the Vineyard. Lines typically wind around an adjacent parking lot, and the bakery has an institutional popularity on the island.

Since 1948, the bakers at 5 Post Office Square have been handing out doughnuts to in-the-know locals and visitors during overnight prep shifts. It first opened as Walmsley’s, followed by Martha’s Vineyard Gourmet & Bakery, and now the Front Bakery Cafe, according to a release.

The company’s Boston expansion is its first venture “off-island,’’ and comes five years after the business changed hands.

Patrick Lyons, a Boston restaurateur and nightclub owner, is behind the Fenway expansion.

The new location will sell doughnuts out of the side door at Loretta’s Last Call, which is directly next to Lucky Strike. It will be marked with a “Donuts After Dark’’ neon sign. Patrons will be able to order in advance online or in person at the window.

The Donuts After Dark menu will feature the signature apple fritter, plus Boston cream, buttercrunch, buttermilk glazed, chocolate coconut, chocolate frosted, chocolate glazed, cinnamon sugar, and much more.

“Our team has been working hard behind the scenes over the past couple of years to bring a little piece of everyone’s favorite island donut shop to the great city of Boston,’’ Back Door Donuts general manager Tyler Heineman said in the release.

“We’re thrilled to bring the ‘Donuts After Dark’ tradition to Fenway’s historic Lansdowne Street, and we look forward to crossing paths with longtime fans and newcomers alike.’’

The first 100 guests in line on March 15 will get one free doughnut on their next visit, according to the release.

Brittany Bowker can be reached at brittany.bowker@ globe.com. Follow her on Twitter @brittbowker and on Instagram @brittbowker.