Freezer Cookie Dough: To freeze cookie dough, prepare the cookies as written. Place the cookie dough balls onto a baking sheet and pop them in the freezer for 30 minutes. After that, you can transfer the frozen cookie dough balls into a longer term storage container. I typically use a freezer bag with the recipe, baking temp, baking time, and date I made the cookies written on the outside. Cookies will stay this way for up to 3 months.