Your dough balls should now be disks, about 25 percent larger in diameter than when you first made them. If you see any air bubbles, pinch them to deflate them.
Grab a“ generous handful of your dusting mixture and dust your countertop liberally. (You can’t really err on the side of overdusting; what you don’t need won’t stick.)
Lift the edge of the plastic wrap and slowly peel it away from the dough disks. The more you practice this, the better you’ll get at peeling away the plastic without much of the dough sticking to it. Use your fingertips to gently coax any sticky dough off the plastic.
Now you’re ready to move the dough to the counter. This is an important step. The idea is to get your disk of dough onto the counter as gently as possible, keeping it as close as possible to its shape on the sheet pan. You don’t want the edges to fold under, and you absolutely don’t want to punch down the dough or squish it back into a ball. Your job is to maintain the shape, airiness, and uniform thickness of that soft, nicely risen disk as you move it to the counter for stretching. If you do that, you’ll have a huge head start on stretching and shaping it into a perfect round of even thickness and circumference.
Wet your dough cutter with a few drops of water to help keep it from sticking to the dough.
If you have more than one dough disk on your sheet pan and the disks are touching at all, use the dough cutter to separate them, slicing straight downward between them (and between the dough and the rim of the pan, if they’re touching).
Holding the dough cutter almost parallel to the sheet pan, gently scrape under the sides of the dough in short movements toward the center to release the disk from the pan, lifting the loosened dough a bit with your other hand.
As you work, be careful to keep the dough in a flat circle, and try not to let the edges droop under the disk.
Once the dough is completely unstuck from the pan, lift the disk carefully with the dough cutter and your free hand and flip it as gently as you can onto the flour-dusted counter.
Dust the dough with a handful of the dusting mixture, then gently flip it back over so that it is right side up again, as it was when it was on the sheet pan. You will now have a nice, neat circle of dough that’s easy to work with and won’t stick to the counter or your hands.