This may sound like a big problem; after all, what's a cook supposed to do when they want to make a big batch of cookies? Well, turns out this is a major problem with a simple solution:
The solution is easy: Just let your cookie sheets cool for a few minutes before starting another round. These thin metal sheets cool very quickly on top of a cooling rack or even laid over the top of your sink — wherever you can get a little airflow underneath the baking sheet to help cool it down. Once it is room temperature again, the baking sheet is ready to use.
It's helpful to have a second baking sheet in the rotation so you can bake with one while the other is cooling. If you don't, you can scoop your cookies out onto a piece of parchment while the baking sheet is cooling, then lift the cookies onto the baking sheet.
We always wondered what to do about this, and we're so relieved to learn that fixing the problem is actually really easy. In fact, this makes us want to go right into the kitchen and get started baking, because now there's really no excuse not to!
Article Source: The Kitchn
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