While Sanders did work as a steam engine stoker, filling station operator, and insurance salesman before opening his restaurant in Kentucky, it was his time spent in the restaurant business that would cement his place in history. There, he perfected his technique for cooking chicken and came up with his secret formula. Sanders then set out across the United States to pitch his chicken dish to eateries. The plan was for him to provide the recipe for free and then get a commission on every chicken dishes sold.