Place the pieces on a parchment-lined cookie sheet.
Bake for 3-5 minutes, until they soften and begin to puff up, then flatten the cookies with a spatula.
For crunchier cookies, bake a few minutes more. (Optional)
Let cool, and enjoy!
Video
Notes
These store well in airtight containers or ziplock bags. If you'll eat them within a couple of days, no need to refrigerate. For longer storage, I'd keep them in the fridge.