Answer: If your baking times are significantly shorter or longer than those called for in a recipe, there may be a calibration issue with your oven’s thermostat. This is a very common problem, and almost all ovens – even those that give the impression of precision through digital temperature displays, etc.
Cookies not baked long enough. Using too much flour or the wrong kind of flour. Too many eggs or other liquids in the dough. Too high a ratio of brown sugar to white sugar.
Reasons cookies are browning too quickly and raw in the middle. Your cookies might be browning too quickly because of: … your oven: it might not be preheating to the set temperature and might be going way above that or you are setting your oven to a very high temperature, too high for your cookies.
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 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.
Microwaving them. If you cover your cookies with a wet paper towel and nuke them for a few seconds, they should soften up enough to eat. The problem is they will get really hot and melty. By the time they cool down to a temperature you can handle, they will be harder and drier than they were to begin with.