"As someone who was born and raised in Chicago, but spent much of my adult life in New York City, I am often asked about my pizza affiliation. While I am not one to fight for the supremacy of one slice over the other, I will argue that a Chicago-style Italian beef is hands-down the best sandwich in the country.
Italian beef sandwiches are traditionally made with roasted beef that has been sliced paper-thin, which can be difficult to achieve when recreating it at home. This slow cooker version incorporates all the flavors I have come to love in this Chicago-style sandwich, but it can be sliced and served slightly differently: either shredded with a fork or cut into slices."