Take a ball, flatten it into a disk with your fingers, and then roll it out, flipping it and rolling in different directions to make the piadina round. If your first one is some other shape, don't worry -- roundness comes with practice, and a couple of the women who participated (veterans who took advantage of the opportunity to make a snack for their kids) made piadine round as dinner plates, and all the same size.
How thick, you wonder? Thinner is better, we were told, and you should aim for 2-3 mm, or close to a 16th of an inch. Again, because of the lard in the dough, the dough won't stick to your work surface.


