Asking for a large, blue, cookie-loving friend.
I read on the internet (so you know it’s true) that cookies baked on parchment paper turn out better/softer than those using Silpat mats, which have been my preference until now.
After much research I conclude that the real key to soft cookies is to slightly underbake them.
If the recipe says ‘bake for 10-12 minutes’ I’ll probably take them out of the oven at 9 minutes 30 seconds and let them cool on the pan for a few minutes.
(The pan’s residual heat continues to cook them slightly.)