National Tortilla Chip Day is celebrated on February 24th of each year.
A tortilla chip is a snack food made from corn tortillas, which are cut into wedges and then fried (alternatively they may be discs pressed out of corn masa then fried or baked). Corn tortillas are made of corn, vegetable oil, salt and water. Although first mass-produced in Los Angeles in the late 1940s, tortilla chips are considered to be a Mexican food, known as tostados. Though usually made of yellow corn (as pictured), they can also be made of white, blue, or red corn. Some manufacturers include many other ingredients including wheat and sugar and MSG.
The triangle shaped tortilla chip was popularized by Rebecca Webb Carranza as a way to make use of misshapen tortillas rejected from the automated tortilla manufacturing machine that she and her husband used at their Mexican delicatessen and tortilla factory in southwest Los Angeles. Carranza found that the discarded tortillas, cut into triangles and fried, were a popular snack, and she sold them for a dime a bag at the El Zarape Tortilla Factory. In 1994, Carranza received the Golden Tortilla award for her contribution to the Mexican food industry.