The Big Mac became the centerpiece of a 1974 advertising campaign featuring two all-beef patties.
The Big Mac was created by Jim Delligatti, a McDonald's franchisee, and introduced in 1967. It was built with two beef patties, special sauce, lettuce, cheese, pickles, onions, and a three-part sesame-seed bun. Its larger size and distinctive structure made it an important product in McDonald's branding.
In 1974, McDonald's advertising popularized the ingredient-list jingle beginning “Two all-beef patties, special sauce, lettuce, cheese.” The campaign helped turn the sandwich's composition into a piece of brand language that customers could repeat and recognize.
The Big Mac is sometimes confused with the Quarter Pounder, which is identified by the weight of its beef patty. The Big Mac's defining branding feature is its two patties and middle bun, not a quarter-pound measurement.