The French dip sandwich is an edible icon, with its pile of sliced roasted meat bursting from chewy bread, all submerged in a savory, super flavorful jus and served piping hot to a very lucky diner. Today, chefs like Bobby Flay offer secret ingredient jus suggestions for the perfect French dip, and home cooks can agonize over the roast beef cuts you need for the absolute best sandwiches, but the culinary inclined have been perfecting this tasty classic since its creation over a century ago.