How to store cookies
Cookies should be stored in an airtight container at room temperature and will keep for a week (or more), though they will be at their best for up to about 3 days.
You can also store baked cookies in the freezer for several months. Let them cool completely, then place them in a freezer ziplock bag layered with parchment paper in between each cookie. Cookies can be enjoyed frozen (try it!) or you can rewarm them in a 300°F oven for 5-10 minutes and they’ll be like new again.