Yes, I understand that I couldn't use 1 of those cookie sheets that's totally flat with no edges, but all of the articles made it sound like a traditional "baking sheet" (which I guess is a half-sheet, usually) wasn't acceptable at all for jelly rolls.
@farktal I did make a "roll" years ago, and just used a plain baking sheet, so, I'm hopeful the pumpkin roll will turn out okay.
@farktal the articles did also say that jelly roll pans are traditionally aluminum, but, so are the baking sheets I have.
@cgrymala Huh. Maybe specific to nonstick or something? I got nothin. (I've never made a pumpkin roll, so idk there.)