Deep dish is a style of pizza that originated in Chicago in the 1940s. It is characterized by its thick, buttery crust that is baked in a deep, round pan, resembling a pie. The crust is often filled with layers of cheese, toppings, and a chunky tomato sauce, creating a hearty and filling meal. Unlike traditional thin-crust pizzas, deep dish has a more substantial texture and is typically eaten with a fork and knife. The cooking method allows for a unique combination of flavors, as the ingredients meld together during baking, making it a popular choice for pizza lovers seeking something different.