Mark,
I have done two sourdough bake sessions. The first was a single loaf at a time, in a cast iron frying pan, with a small stainless bowl for water. This worked well, but for 4 loaves, I used a lot of pellets. The second bake was on the pancake griddle, so I could bake two loaves at a time. I had a single sheet of heavy duty foil under each loaf. For steam, I poured some water on the drip tray below the griddle at the start of each bake. The photo shows the rise I was able to achieve during the two-at-time bake. This week I acquired a cast iron Dutch oven, so if it fits vertically, I’ll try that next time, though, the use of the Dutch oven will increase the baking time due to one loaf at a time. I hope this helps!
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