The Big Mac, introduced in 1967, became McDonald’s signature two-patty sandwich.
Franchisee Jim Delligatti created the sandwich in the Pittsburgh area as a larger, more substantial menu item. It used two beef patties, a middle bun section, lettuce, cheese, pickles, onions, and special sauce. McDonald’s first sold it regionally before introducing it nationally in 1968.
The Big Mac is often confused with the Quarter Pounder because both became famous McDonald’s menu items. Their defining structures differ: the Big Mac is known for two smaller patties and a three-part bun, while the Quarter Pounder is identified by the weight of its beef patty before cooking.
The sandwich became more than a menu product. Its name, packaging, jingle, and distinctive layered appearance made it a durable part of McDonald’s product branding and one of the most recognizable fast-food sandwiches.