Blue steel pans are paramount
You can't cook one these right-angled monstrosities in just any pan, by the way. The official vessel is a blue steel pan sourced from a small manufacturing company in West Virginia. "The blue steel... gets to a high, high heat, so it really burns the corners,” says Tony. Wes Pikula, the general manager of Buddy's, told Detroit Free Press in 2011 that the pans "have a way of capturing the flavors in the metal", similar to a black skillet.
Skillets are intended for the kitchen, but apparently, blue steel pans were never supposed to be "pans" in the first place. In an odd twist of Motor City history, the manufacturer -- who inadvertently caused a pan shortage when it moved its operations to Mexico three years ago -- claimed in the same article that its blue steel pans were meant as small-parts trays for factory work, not for baking. No one's quite sure how they came to be a Detroit pizza essential, but they remain one to this day.