Hi! I used an 9x13 baking pan. If you want thicker cookies, use an 8x8. I actually did hand-crush the corn flakes a bit. You could go either way. I liked the way the slightly larger flakes, instead of crumbs, provide a crispy texture.
THANK YOU for your reply….you'll laugh, but i was SO intent about trying this recipe, i FORGOT the salt!
i used crisco in the cups. Waited 5 min. after baked, & a tiny rubber scraper to go around. they came out. think one of the tricks is to wait 5 minutes, as directed to do in your instructions.
i remember the last time when i used only k.a. flour (minus cornstarch) that these deflated…happened again. don't know why, but when this happens, it makes the popovers more dense & not with "nooks/crannies" like a typical popover. however, TASTE was GOOD.
i have read where you put a small, sharp knife in to let the steam out after baking. i don't like to change a recipe too much before i use it. i took a picture (don't know how to send this to you) of the deflation….should have taken it first with the height, but forgot.