Halloween day, Insomnia Cookies guests can join in on the fun with a free traditional cookie—no purchase necessary—and nationwide social media contest, just by wearing a costume in-store.

The celebration kicks off with the return of the popular Halloween Moon Cake on Wednesday, October 16. With a special “Happy Halloween” message on a delectable moon shaped cookie base, this limited-time cookie cake is sure to be the most talked about item at your next office, school or Halloween event.

Looking for something a bit more bite-sized? The late-night bakery chain unveils its new Peanut Butter Choco-Lantern cookie on Wednesday, October 23 at all 160-plus locations. With a double dose of chocolate, creamy peanut butter chips baked throughout and festive pumpkin sprinkles to top it all off, this limited-time Peanut Butter Choco-lantern cookie puts any old pumpkin spice dessert to shame. See the full nutritional information here.

Finally, the best treat of all! All day on October 31, any guest wearing a Halloween costume in-store will receive a free traditional cookie—no purchase necessary. Better yet, take a photo of your costume in-store and use #trickortreatyoself on any of your social media accounts for a chance to win a $100 Insomnia Cookies gift card.

For those who can’t make it out to the stores, Insomnia Cookies will be offering 10 percent off online delivery orders of $10 or more the entire week with code TREAT10 (valid through Monday, November 4, at 3 a.m.). With delivery available until 3 a.m. every day, let us bring the trick-or-treating right to your door.

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