We started selling “detroit style” by the slice a few months ago. We just use our regular pizza dough and have been doing very well with it. We’re in Philly area, not sure if it would fly in the midwest.
22 oz dough ball Toss in melted butter or fake melted butter. Proof in 10x14x2.5 in Lloyd pan until it is about halfway up the sides. Bake until it starts to brown, roughly 6 minutes. Spread 10 oz shredded mozz (we don’t use brick cheese) over the dough, cook until just melted. Spread 5 oz shaved parmesan around the perimeter, cook until melted an carmelized about 3-4 minutes. Remove from oven and pan, add 8 oz of sauce in racing strip lines over the top.
Edit: We are baking in a Marsal and Sons MB series deck oven @ 500F