I have a Rosati's Pizza 2 blocks from me and they do authentic Chicago style "stuffed" pizza and deep dish. Both are deep dish but the "stuffed" pizza has the sauce on the top. According to my neighbor from Chicago the sauce on top is the authentic version. I got dough from them a month or two ago and made a deep dish and my neighbor said it was great except my sauce on top wasn't chunky enough. I rubbed my skillet down with butter, then put in the crust which I then trimmed so it came to the top of my skillet without hanging over the sides. Then cheese, pepperoni, dry salami, more cheese then sauce. It came out great. Cooked in indirect on my 26er....can't really say how long it cooked. The good thing with pizza is that even if it isn't 100% authentic to what you are trying to replicate, you're own version can be just as good!!!!