system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: When you take cookies out of the oven they are so soft that if you move them too quickly they’ll fall apart. If you wait a couple minutes, they’re much more stable. What’s happening in that two minutes?
gpt
Butter/fat cools and hardens. Bonds between starches and proteins (from the flour and egg) are more mobile with more heat. Steam is released as the cookie cools so there is less moisture content. Chocolate chunks also resolidify. Basically, the cookie becomes more viscous/solid in the way that everything else becomes more viscous/solid as it cools.