Oreo is bringing back a special flavor they shelved in 2017. Blueberry Pie Oreos will be returning to stores for a limited time on July 7. The Oreo features two graham cracker-flavored cookies squeezed together with a blueberry-flavored cream in between. The flavor is among the top five that fans comment about on social media, so the company paid attention. If you can’t wait, a presale of the cookies will be held on June 30, with registration opening yesterday and going until June 29.