Although this cookie skillet is best enjoyed fresh out of the oven, it can also be reheated. If you're planning on reheating it, skip the ice cream on top or spoon out individual portions of the cookie skillet into a separate bowl. The ice cream will not reheat well so it's important to leave that out. When you're ready to reheat, cover the skillet with some aluminum foil and bake it in the oven for 5 - 7 minutes at 300 F. The lower temperature will warm it up without baking it too much.