Why do you have to chill the cookies for 2 hours?

It's not necessary to chill cookie dough for two hours. Chilling the dough for 30 minutes to 1 hour produces good results.

Chilling the dough allows it to firm up, making it easier to handle and roll out without sticking to your hands or the counter. Additionally, chilling the dough helps control the spread of the cookies in the oven, resulting in thicker and chewier cookies.