For the best texture and flavor, chill the dough overnight or up to 48 hours.
If needed, immediately after baking, use a bowl or large round cookie cutter to shape the cookies into a perfect circle.
Press extra chocolate chips into the cookies immediately after removing them from the oven to get melty chocolate on top.
The cookies will continue to bake on the baking sheet while cooling, so don't be afraid to pull them right at the 12-minute mark if you like them less done.
If you like your cookies more done, keep them in the oven for 1-2 more minutes.