Hi Frankie! Different types of parchment paper will take to baking multiple times in varying ways — some simply aren't heavy duty enough to bake twice and will develop that brittle, wrinkly texture you've experienced. If your parchment paper isn't overly greasy, try shaking any bits off and gently wiping it with a dry paper towel and that should do the trick. If it's greasy, you'll want to reuse it pretty quickly, preferably within a day or two so as not to allow any lingering fat to go rancid. If the paper is dry, it'll keep for a very long time until you're ready to use it again. Annabelle@KAF

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