Bow-tie french fries are a food item that only appear in the episode "Patty Hype."
They are crinkle-cut french fries with a red bow tie in the middle.
Role in episode
SpongeBob thinks of a new product to attract customers to the Krusty Krab again called the Pretty Patties. Squidward and Mr. Krabs, however, find this invention to be laughably bad and mock him with novelties of their own like sequin milkshakes and bow-tie french fries.