Disco fries are especially associated with which U.S. state?

Disco fries are especially associated with New Jersey.

The diner dish consists of French fries covered with brown gravy and melted shredded cheese, usually mozzarella. It is a hearty, late-night comfort food rather than a traditional cheese-curd dish, which is why it is commonly compared with—but distinguished from—Canadian poutine.

Disco fries became strongly linked with New Jersey diners during the 1970s. The Tick Tock Diner in Clifton is widely credited with popularizing the dish by that name, although accounts of its exact origin are disputed. The association with the state is not: disco fries remain a recognizable staple of New Jersey diner culture.

Cheese choices can vary. Mozzarella is traditional, but restaurants may use cheddar, provolone, Gruyère, or American cheese. Modern versions have spread beyond New Jersey, including elaborate restaurant interpretations with curry, brisket, or other gravies, but the classic combination remains fries, brown gravy, and melted cheese.