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 pan, allowing for a generous amount of toppings and cheese. The pizza is typically layered with cheese on the bottom, followed by various toppings, and then topped with a chunky tomato sauce. Unlike traditional thin-crust pizzas, deep-dish pizzas have a more substantial texture and are often served in slices that are hearty and filling. This style of pizza has gained popularity beyond Chicago, with many pizzerias across the United States offering their own versions.