The Georgia peach barbecue sandwich is a smoked pork sandwich defined not by the meat or the smoke but by the sauce, and specifically by fruit standing in for part of the sugar. Pureed peach in the sauce does more than flavor it: the fruit's natural sweetness and body replace some of the molasses or refined sugar a standard sauce leans on, and its mild acidity cuts the fat of the pork the way vinegar does in other regional sauces. The sauce is the whole argument here. The pork is the canvas, the smoke is the technique, and everything distinctive lives in what is brushed on at the end.
The craft happened in the smoker long before assembly. The pork shoulder is taken low and slow until it shreds into bark and tender interior, which is the part of the work the sandwich inherits rather than performs. The build decision is the sauce and the slaw. The peach sauce has to be reduced enough to cling to pulled pork without sliding off and balanced so the fruit reads as roundness and acid rather than as dessert, since an oversweet sauce buries the smoke entirely. The bun is a plain, soft, slightly sweet roll chosen to disappear: it soaks the sauce and the rendered juice and gives the hands something to hold while the smoked pork and the peach do the talking. Slaw, when it goes on, sits on top for cold crunch and a second line of acid against a rich, sweet, fatty filling. This is barbecue-shack and roadside food, the meat held hot off the smoker and sauced to order, judged on whether the smoke still comes through under the fruit.
The variations stay inside the sauce. A peach-and-vinegar build leans sharper and lets the fruit ride a thinner base; a peach-and-mustard version splices Georgia's fruit onto the Carolina mustard line; a smoked-chicken or pork-belly build swaps the protein while the peach sauce holds fixed. These belong to the broader American barbecue map and its regional sauce arguments, and each deserves its own article rather than being crowded in here.