In-N-Out Burger introduced the Double-Double, a hamburger with two beef patties and two cheese slices.
The Double-Double is one of the chain’s best-known menu items. Its name describes the standard construction: two hamburger patties and two slices of American cheese. Lettuce, tomato, spread, and onions are also commonly included, although customers can customize the preparation.
In-N-Out began in 1948 when Harry and Esther Snyder opened a hamburger stand in Baldwin Park, California. The company became especially associated with fresh preparation, a relatively limited menu, and locations concentrated in the western United States.
The Double-Double should not be confused with a generic double cheeseburger. “Double-Double” is a trademarked menu name strongly associated with In-N-Out, while other restaurants use different names for burgers containing two patties and two cheese slices.