Which fast food chain is famous for its 'Curly Fries'?

The fast-food chain famous for its Curly Fries is Arby’s.

Arby’s is best known for roast beef sandwiches, but its spiral-shaped, seasoned fries became one of the chain’s signature side dishes. The fries were initially introduced as Curly-Q Fries in 1988, giving Arby’s a distinctive alternative to the straight-cut fries associated with many burger chains.

Curly fries are made by cutting whole potatoes into a helix or spiral. Their shape is not unique to Arby’s, and other restaurants have offered similar products, but Arby’s made the style strongly associated with its brand. The seasoning commonly includes flavors such as paprika, black pepper, onion, and garlic.

Another common misconception is that Arby’s invented curly fries. Curly fries existed before the chain introduced its version; examples can be traced to earlier restaurant and frozen-food products. Arby’s contribution was popularizing its particular Cajun-style seasoned version nationwide. The chain’s fries are often paired with its roast beef sandwiches, Beef ’n Cheddar, Arby’s Sauce, or Horsey Sauce.