Roll the dough into balls, then place them on a baking sheet. Freeze them for about 30 minutes to harden the dough to avoid sticking. Then, add cookie dough balls to a freezer bag and store them in the freezer. When you're ready to bake them, let the cookies sit out for 20 minutes or so while the oven is preheating (so they can defrost a little). You may need to bake the cookies for a few minutes longer, so be sure to keep an eye on them to prevent burning.