Make your own at Cookie Bar
2457 N Lincoln Ave, 773-348-0300. $5.
It’s all about customizing your sammie at Cookie Bar. Start with the cookie: Go straightforward sugar or snickerdoodle if you wish, but we’re partial to the Lisa Marie Presley made with chocolate chips, peanut butter and banana. Then pick your gelato (a dozen flavors including sundried cherry and peanut-butter cup) and you’ve got a mega-sandwich you could easily go halfsies on—but why would you?