Luncheonette, or lunch counter, is a small, casual restaurant where diners sit at a counter to be served, offering simple, quick meals such as burgers and milkshakes. Originating in the early 20th century, they became icons of American culture in the 1950s and 1960s, serving as social hubs across the country. Luncheonettes typically have a counter where diners can watch the kitchen in action, adding to a casual, interactive dining experience. Milwaukee adopted this classic style for its butterburgers, bringing the nostalgic American experience to its customers in Spain.