A Brooklyn bakery worker was found dead inside a walk-in freezer early Thursday by colleagues arriving for work at a local business renowned for its legendary black-and-white cookies, police said.

Co-workers found the lifeless Mahamadou Dansogo, 33, a recently-hired employee, inside the popular Beigel’s bakery on Avenue D near E. 56th St. in East Flatbush about 8 a.m. after a freak accident, according to a law enforcement source.

The immigrant victim, a father of five in his native Mali, apparently became ensnared in the rotating blades of a machine while working inside the freezer, the source said.

“This guy just come to the United States,” said his uncle Tidiane Wague. “He tries to do like everybody else, to have a better life. He loves his job, he comes to work every day.”

Dansogo was living with family in Bedford-Stuyvesant and on the job for just five months before his tragic death, according to Wague. The uncle said he was told the machine was accidentally turned on while Dansogo was on the job.

“We are devastated by the loss of our employee in this accident,” said Beigel’s manager David Greenberger outside the store. “The family has been notified and we have extended our deepest condolences to them... This is an ongoing situation and we are cooperating with all investigations.”

Officials with the federal Occupational Safety and Health Administration arrived on the scene Thursday afternoon without commenting about the death.

Wague said his nephew was chasing the American dream when he arrived in Brooklyn.

“This guy just come to the United States,” said his uncle. “He tries to do like everybody else, to have a better life.”

Greenberger said grief counselors were onsite to provide “counseling and support” for the man’s family and its employees.

“It’s very emotional,” he added.

The popular local business, founded in the owners’ hometown of Krakow, Poland, in 1934, became famous for its signature black-and-white cookies and whoopie pies.

Beigel’s relocated to the Lower East Side in 1949, eventually moving to Brooklyn as the business with its proudly-claimed “old-world sensibilities” continued to flourish.

The company website boasts of the black-and-white treat as “New York’s signature cookie, with Beigel’s churning out over a hundred million of them to date.”

The bakery, located off a parking lot behind a gate, was closed off with police tape.

“He was doing his work and the accident happened,” said a man selling food from a van outside the store. “Life is short, right?”