At Cakes.fyi we recomment cake and cookies be stored in an airtight ziplock for up to one week or frozen upto 2 weeks if not enjoyed immediately. For maximum enjoyment, warm the cookie in a 350-degree oven for a few minutes or until gooey. Of course, if you simply can’t wait, then 20 seconds in the microwave will do. If frozen, they’ll take roughly 5-10 minutes depending on your oven — but trust our baking experts, it’s worth it.