Steak 'n Shake began in 1934 when Gus Belt opened a burger stand in Normal, Illinois. The original concept centered around premium steakburgers made from select cuts and hand-dipped milkshakes. This commitment to quality ingredients established the brand's reputation. Over the decades, the company expanded throughout the Midwest and other regions while maintaining its classic diner atmosphere. Today, Steak 'n Shake operates as a subsidiary of Biglari Holdings with a focus on its signature steakburgers and shakes. The restaurants feature a retro-style design that evokes 1950s Americana.