The signature hamburger associated with the Big Boy restaurant chain is the Big Boy.
The burger is commonly described as a double-decker hamburger served on a three-part bun, with two beef patties and layers of toppings. Its distinctive construction helped make the Big Boy name recognizable across the chain’s restaurants.
The restaurant brand grew from Bob’s Pantry in Glendale, California, where restaurateur Bob Wian created a double-decker hamburger in 1937. The character Big Boy later became the brand’s mascot and namesake, and the restaurant chain expanded through franchising.
The Big Boy burger is sometimes confused with McDonald’s Big Mac because both are double-decker hamburgers with two patties. They belong to separate restaurant brands, and the Big Boy sandwich predates the Big Mac by several decades.