I believe it's cast aluminum. It was a surprise even though I'd asked for one in the past. I know there have been times I've passed on recipes that called for something to be started on the stovetop and then transferred to the oven. Since Mrs BamaVol is in charge of cleanup, I thought she'd appreciate one less item to wash.
I've had cobbler from the campfire. I was a boyscout for a few years and a couple of the BamaVol Jr's made it through Cubs before losing interest. Campfire cobbler was probably responsible for all of us sticking it out one more year than we would have otherwise.