Proper storage is key to extending the life of your peanut butter cookies. You can store them in the fridge for up to 2 weeks or freeze them for 2-3 months. Just make sure to wrap them tightly in plastic wrap or aluminum foil to keep them fresh. And, if you're feeling extra fancy, you can even use a vacuum sealer to suck out all the air and preserve them for an eternity (or at least that's what it feels like).
Now, I know what you're thinking, "What about the cookies that I've already devoured?" Well, let's just say that those cookies have a shelf life of approximately 0 seconds, because once you take a bite, they're gone, baby, gone! But, in all seriousness, it's worth noting that peanut butter cookies can be a bit more perishable than other types of cookies due to their high oil content.
Healthy Natural Peanut Butter Cookies That Stay Soft
On the other hand, if you're looking to make your peanut butter cookies last longer, you can try using preservatives like baking soda or salt. These magic ingredients will help extend the life of your cookies and keep them fresh for a longer period. Just don't overdo it, or your cookies might end up tasting like soap (not that I've ever made that mistake before).