A vegan grocery store on Long Island claims the gluten-free donuts it ordered from a vegan bakery not only weren't gluten-free - they weren't even made by the bakery.

The accusations made by Cindysnacks in Huntington have gone viral and are being investigated by the New York State Division of Food Safety and Inspection​, according to Newsday.

The doughy controversy erupted when Cindysnacks co-owner Jonathan Stengel accused a vendor, the Savory Fig, of passing off Dunkin' donuts as its own homemade gluten-free goodies.

In a March 3 Instagram post, Stengel said a pink-frosted donut delivered to their shop was sprinkled with tiny Ds that uncannily resemble Dunkin's logo.

Donuts from Dunkin' contain gluten and dairy.

Stengel posted a picture of the suspect donut in his post, along with his communications with Savory Fig owner Michelle Siriani.

He and partner Indiana "Cindy" Kay also went a step further and bought a gluten home-testing kit.

"The test results ... proved to us that at the very least, this donut (and most likely ALL of her donuts) contain substantial amounts of gluten​," Stengel wrote on Instagram.​

"We can only assume, given this recognizable logo design, where these donuts really came from and what other ingredients they might contain​," he added.

Siriani told Newsday that the posting from Cindysnacks was "untrue."

She also denied the treat was from her bakery.

"That was not my donut," she said.