When a light-colored cookie is done, it should hold its shape. However, it may look a bit puffy or soft in the center, too. This is normal and simply means that the cookie may continue baking on the sheet and rack once removed from the oven.
It’s all about moisture. To keep it simple, cookie recipes that contain a lot of butter, brown sugar or egg yolks are going to yield soft and chewy cookies, because those ingredients add moisture and retain it for a longer amount of time.
Most cookies are still soft when done (they harden as they cool) and will continue to bake on the cookie sheet once removed from the oven. Remove cookies from the cookie sheet as soon as they are firm enough to transfer, using a spatula, to a cooling rack or paper towels to finish cooling.
However, it may look a bit puffy or soft in the center, too. This is normal and simply means that the cookie may continue baking on the sheet and rack once removed from the oven. Taking cookies out of the oven at this stage will make them softer and chewier. Whereas, overcooking can create brittleness.
Undercooked cookies are still edible, don’t toss them! Some people prefer chocolate chip cookies underdone, but you can’t know for sure that the egg has fully cooked (although that wouldn’t bother me one bit unless the source was shaky).
Most of the time, cookies need to cool for around five to ten minutes before they can be moved and consumed. But it’s not as much of a cut and dry answer as you may think.
Bake at 375 degrees F until golden and tender, 12 to 15 minutes. For crispy-cakey cookies: Bake the cookies at 425 degrees F until golden and crunchy on the outside, 8 to 10 minutes. For chewy cookies: Use 1 cup light brown sugar and 1/4 cup corn syrup and omit the granulated sugar.
To ensure a chewy texture, take cookies out of the oven when they are still slightly underdone, which often means they will droop over the end of a spatula. Crevices should appear moist and edges on smooth cookies should be lightly browned.
How to harden soft cookies? To harden soft cookies, whether they are freshly baked or a few days old, put them in the oven preheated to 300-50°F and bake for a few additional minutes. You can also adjust your cookie recipe and pick the right baking tray to get crispy cookies every time.
How to Tell When Chocolate Chip Cookies Are Done. Chocolate chip cookies are done when they have a firm golden edge or bottom and appear slightly set on top. If the edges become dark brown, they are overbaked. If edges aren’t golden and tops are soft and shiny, bake a little longer.