Fritos is the name of a brand of corn chip

Corn chip

A corn chip is a snack food made from cornmeal fried in oil or baked, usually in the shape of a small noodle or scoop. Corn chips are thick, rigid and very crunchy...

s made by Frito-Lay

Frito-Lay

Frito-Lay North America is the division of PepsiCo that manufactures, markets and sells corn chips, potato chips and other snack foods. The primary snack food brands produced under the Frito-Lay name include Fritos corn chips, Cheetos cheese-flavored snacks, Doritos and Tostitos tortilla chips,...

. Elmer Doolin was so taken with the bag of corn chips served with his lunch in San Antonio, Texas

San Antonio, Texas

San Antonio is the seventh-largest city in the United States of America and the second-largest city within the state of Texas, with a population of 1.33 million. Located in the American Southwest and the south–central part of Texas, the city serves as the seat of Bexar County. In 2011,...

 that he paid $100 for the recipe. In 1932, he started the Frito Corporation. Original Fritos ingredients are limited to whole corn, corn oil, and salt.
From 1952 until 1967, the Frito Kid was the company's official mascot. The Frito Bandito

Frito Bandito

The Frito Bandito was the cartoon mascot for Fritos corn chips from 1967 to 1971. The Bandito was created by the Foote, Cone & Belding Agency, and animated by Tex Avery. The character was voiced by Mel Blanc, who used an exaggerated Mexican accent not unlike another character of his, Speedy...

 was its mascot from 1967 until about 1971, and was discontinued due to complaints about the Bandito image.