If the shells are cooked through (they don't budge more than a millimetre on the foot when nudged gently) but they won't come
off the parchment easily, slide the parchment back onto the baking sheets and pop them back into the cooled oven, which is turned OFF, and run the fan for a few minut
off the parchment easily, slide the parchment back onto the baking sheets and pop them back into the cooled
oven, which is
turned OFF, and run the fan for a few minut
OFF, and run the
fan for a few minutes.