try a loaf of fresh unsliced white bread, have the bakery slice it 2" thick, then split the top yourself. Most of the places I’ve seen them in bulk like at amusement parks and drive in’s in PA are just that. They were not baked individually or slammed together, it’s a special slicing of a long loaf about 24" long. Maybe that’s why I’ve never cared for them, noone butters and grills them b4 serving.