Welcome to Chicago Pizza Authority Discover the best pizza in town at Chicago Pizza Authority. Using the freshest, highest quality of ingredients, Chicago Pizza Authority creates the definitive Chicago pizza. Each bite delivers excellence, heartiness, and mouthwatering flavors that will satisfy the boldest of appetites. The stockyards, Chess Records and now, even Oprah has left, but Chicago Pizza Authority remains a Chicago institution. Our name says it all: we are THE authority when it comes to Chicago pizza.