If you’ve been eyeballing the cookie aisle with nostalgic hope, the Reese’s Oreo mash-up you first snagged last summer is now here to stay. As of January 5, the hybrid sandwich cookie that pairs classic Oreo chocolate wafers with a peanut butter creme inspired by Reese’s—complete with scattered Oreo cookie crumbs—has quietly slid into grocery stores across the country as a permanent fixture in the Oreo lineup.
Fans first tasted the combo during its summer 2025 retail debut at Hershey’s Stores, and after months of buzz and repeat social media sightings, Oreo confirmed the flavor would return to store shelves as a core offering.
Mondelēz
At first glance, the product of this iconic collaboration looks just like a familiar Oreo cookie. But the surprise—rich, peanut buttery vegan creme mixed with chocolate and cookie crumbs nestled between the two chocolate wafers—gives it a texture and kick closer to Reese’s iconic peanut butter cups.
The enduring customer enthusiasm for the mash-up follows a broader rollout from Oreo: new packaging for Golden Oreo Minis and expanded options for Peanut Butter Oreo Minis also hit shelves on the same day, giving snack lovers more ways to dunk, share, and stash cookies for later.
New Oreo zero sugar cookies join the lineup
For those watching their sugar intake but still craving a sandwich cookie, Oreo has new options designed to satisfy sans the sugar. Its parent company announced that Oreo Zero Sugar Cookies—including both the classic version and Double Stuf—are hitting the US market for the first time as part of the brand’s permanent offerings.
The move marks a notable shift for the cookie maker. Mondelez said the Zero Sugar iterations are designed for folks who want “indulgence without sugar,” a response to demand from consumers more mindful of sugar content.
Both standard and Double Stuf Zero Sugar packs should be available in cookie aisles right now, hanging happily alongside the returning Reese’s Oreo collaboration and other Oreo innovations.
A broader shift at Mondelēz
Beyond new flavors and formats, Oreo’s parent company is also making changes that won’t show up on the shelf. Following months of pressure from advocacy group People for the Ethical Treatment of Animals and more than 63,000 supporters, Mondelēz International has announced it will end all animal experimentation across its business.
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The decision includes discontinuing so-called “nutritional science” experiments on animals—tests that are not required by law and have no impact on the safety or approval of Mondelēz products. The updated policy closes a loophole in the company’s previous guidelines, extending the ban beyond ingredients and finished products to cover all animal testing moving forward.
For consumers paying closer attention to how their favorite snacks are made—and the values behind the brands they buy—the move marks a notable shift toward non-animal, human-relevant research methods at one of the world’s largest snack companies.
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