The regional table / Michigan
Detroit-Style Pizza
The cheese goes all the way to the wall of the pan on purpose, because the part that burns against the steel is the part people drive across town for.
The Detroit pizza is young, and the honest way to write it is to say how young. Georgia Historic Newspapers indexes syndicated national copy and runs to 2024; search it for the exact phrase "Detroit-style pizza" and it returns six pages, the earliest dated 1 June 2021, and every single one is a restaurant listing for a franchise opening in Georgia. The name is that recent as national property. The closest thing to a definition on the public record is not a cookbook either — it is an offering memorandum filed with the Securities and Exchange Commission in May 2021 by a Texas company registered as Detroit Style Inc., which tells prospective investors that "Detroit-style pizzas are baked in a rectangular pan, and are usually topped with Wisconsin brick cheese as opposed to mozzarella" and that "The end result is a buttery, crispy crust with cheese right up to the edge". Two sentences in a securities filing, and they are the correct two.
The pan is the origin story, and it belongs to a named business rather than to a document. Buddy's, in Detroit, dates the dish to 1946 and says the first ones were baked in blue steel utility pans that came off the automotive trade rather than out of a bakery supplier. That claim is the company's own; no record reachable for this page dates it, because the Detroit dailies are closed to automated requests and the America Eats Michigan file that would normally carry a state dish could not be opened at all. What can be checked is the cheese, and it is worth checking, because it is the whole engineering of the dish. Brick cheese has a federal standard of identity at 21 CFR 133.108: "The minimum milkfat content is 50 percent by weight of the solids and the maximum moisture content is 44 percent by weight", the curd "cut into cubes with sides approximately 3/8 inch long" and, if the milk was not pasteurised, cured at not less than 35 °F for at least 60 days. Half fat and under half water is exactly what you want against hot steel: enough fat to fry, not enough water to steam.
Why this version works
Cheese against the metal. Everything that makes this pizza different happens in the half inch between the cheese and the pan wall. Fat renders out, the milk solids hit steel at 500°F and go past brown into black-edged, and the result is a rim of fried cheese welded to the crust. Leave a border, as you would on any other pizza, and you have made a focaccia with toppings.
Brick cheese, not mozzarella. Low-moisture mozzarella is built to stretch; brick is built to melt and break. At 50 percent milkfat in the solids it puts out enough free oil to fry the crust from above, and at 44 percent moisture or less it does not flood the dough. That combination is why the substitution everyone reaches for — mozzarella — gives a wetter pizza with a pale edge.
Sauce on top, after the bake. Two or three stripes of sauce go across the cheese when the pan comes out of the oven. Sauce under the cheese soaks the dough for fifteen minutes at high heat; sauce on top keeps its raw tomato sharpness and cuts the fat, which by then is considerable.
A wet dough and a long rest in the pan. Seventy-five percent hydration gives an open, custardy interior that can survive being fried in oil at the base. The dough is not rolled: it is pressed out, allowed to relax, pressed again, and proofed in the oiled pan itself, so it arrives at the oven already the shape of its walls.
