My chocolate chip cookies went from flat puddles to perfect puffs after I chilled the dough overnight.
I mean, I always skipped that step thinking it didn't matter, but the difference in spread after 12 hours in the fridge was crazy. Has anyone else had a specific time that made a big change for a simple recipe?
Oh man, chilling dough is a total game changer! It's all about the butter solidifying again, so it melts slower in the oven and doesn't just instantly spread into a puddle. That extra time also lets the flour really soak up the wet ingredients, which I heard helps with texture. I've found even just a 30 minute chill makes a noticeable difference compared to baking right away, but overnight is the real secret for that perfect thickness.
Actually the butter doesn't really solidify again in the fridge, it just gets firm. The main point is keeping it cold so it takes longer to melt in the oven. That's what gives you the lift and stops the spread. You're right about the flour hydrating though, that part is key for chewiness. Overnight chill is definitely the way to go for the best results.