In-N-Out Burger television commercial from 1987. In-N-Out Burger is a popular fast-food chain from California, famous for its burgers, fries, and shakes. Established in 1948 by Harry and Esther Snyder, it's known for its commitment to fresh, high-quality ingredients and a simple, straightforward menu. Unlike many fast-food chains, In-N-Out prepares all food to order and avoids using freezers, heat lamps, or microwaves, aiming to maintain freshness and quality. The menu primarily features hamburgers, cheeseburgers, the "Double-Double" (two patties, two cheese slices), fries, and drinks. In addition, In-N-Out has a "secret menu," which includes popular options like "Animal Style" (burgers and fries with grilled onions, pickles, mustard-cooked patties, and extra sauce) and "Protein Style" (lettuce-wrapped burgers). Known for its loyal fan base, In-N-Out has expanded primarily across the West Coast and southwestern U.S. but is also recognized in pop culture and among burger enthusiasts n...