Pizza Hut’s new rectangular, deep-dish pie has catapulted “Detroit-style” pizza into the national spotlight. The latest iteration of the Italian staple from the Kansas-based chain borrows from a recipe that originated at Buddy’s Rendezvous — now Buddy’s Pizza chain — in Detroit, just after World War II. The pies are baked in a rectangular or round pan and covered in Wisconsin cheese. Red sauce and toppings are added last. For many Americans, the Pizza Hut rollout was their first introduction to the Motor City’s twist on the food more commonly associated with New York and Chicago.