A hungry thief slipped into a Brooklyn yeshiva, only to munch on some food and grab even more to go — a total value of $180, according to police. 

The woman entered the Yeshiva Aleksander School on 15th Avenue near 40th Street in  Borough Park through an unlocked front door around 5:20 p.m. Friday, police said. 

She’s captured on surveillance footage taking a carton of milk out of a bag and walking around. 

Boxes of corn flakes can also be seen in the room, but cops did not have a breakdown of the items she took. 

Cops describe her as about 5 feet 7 and 120 pounds, with a slim build, light complexion and long black hair.

 She was last seen wearing a red hooded jacket, white leggings and white shoes.