After you have baked a batch of cookies and removed them from the pan, the tendency is to put another batch on the pan right away, especially if you are short on time. However, for plump, soft cookies, it is important to allow your baking pan to come to room temperature before adding more cookie dough. Adding cookie dough to a hot pan or even a warm pan will start the dough softening and melting before it even gets into the oven. This will contribute to a cookie that spreads out too much in the oven. For a quick method of cooling your pans, run them under cool water for 20 to 30 seconds (or longer if needed, until cool), dry, and continue with your baking.