Doritos is an American brand of flavored tortilla chips produced since 1964 by Frito-Lay, a wholly owned subsidiary of PepsiCo. The original Doritos were not flavored. The first flavor was Toasted Corn, released in 1966, followed by Taco in 1967 and Nacho Cheese in 1972. Other specialty flavors began to make their debut during the late 1980s. The concept for Doritos originated in a restaurant at Disneyland.
In "From Method to Madness", Peter offers Santos & Pasquel bags of Doritos as a reward for the hard work they've done.
When Lois remarks about how Brian would make a good teacher at Buddy Cianci Junior High School in "Fast Times at Buddy Cianci Jr. High", Stewie sarcastically assumes that he'll teach the kids about trivial subjects like licking Dorito crumbs from between the sofa cushions.
After noting that the Doritos Tacos from Taco Bell are only available for a limited time on a billboard before seeing that Tom Tucker is contemplating suicide in "The New Adventures of Old Tom", Peter is seen licking off his fingers from the orange cheese powder used in the making of the Doritos shell, having made a stop for the tacos before arriving for Tom.
In "Saturated Fat Guy", Peter makes an unusual panini sandwich in his car consisting of peanut butter cups, sausages, Doritos and a cracked Cadbury Egg and offers Cleveland one before many customers line up outside to buy the sandwiches.
While the family takes shelter from a hurricane in "Holly Bibble", Chris opens a bag of 'Cattle Ranch Doritos' in a small motel room, which disgusts the family with its smell.