A century-old barbecue restaurant has its top-secret barbecue sauce recipe locked in a bank vault

A century-old barbecue restaurant has its top-secret barbecue sauce recipe locked in a bank vault

McClard's Bar-B-Q is famous for serving Bill Clinton and its top-secret sauce recipe.Lolo A./YelpMcClard's has kept its barbecue sauce recipe in a bank vault for decades.The Arkansas barbecue restaurant has been family-owned since 1928.Bill Clinton once had McClard's ribs flown to the White House.Some family recipes are tucked away in a kitchen drawer or written down in a dusty recipe book.At McClard's Bar-B-Q in Arkansas, one family recipe is c…