The new Portillo’s Oreo desserts are here for Halloween, giving fans three ways to enjoy the classic cookie: an Oreo Shake, Oreo Cake, and Oreo Cake Shake. The limited-time desserts launched nationwide on October 6, 2026, and are available while supplies last.
What Are the New Portillo’s Oreo Desserts?
Portillo’s has teamed up with OREO to create three limited-time desserts: the Oreo Shake, Oreo Cake, and Oreo Cake Shake. The lineup combines OREO cookie pieces with Portillo’s familiar cake and hand-spun shake desserts.
The collaboration arrives during the Halloween season, but the desserts are not simply themed versions of existing menu items. Each one uses OREO in a different way, from crushed cookies in a shake to an entire slice of Oreo Cake blended into a drink.
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What Is the Portillo’s Oreo Shake?
The Portillo’s Oreo Shake is a vanilla shake with crushed OREO cookie chunks. For those who like a classic “cookie and cream” dessert, it’s the easiest of the new menu.
The parts of the cookie are actually blended into the vanilla shake, which makes an OREO flavor as a part of the drink, not just a topper.
What Is the Oreo Cake?
The Oreo Cake is a moist white cake made with crushed OREO cookie pieces, covered with OREO frosting and finished with additional cookie pieces. It puts the cookie directly into Portillo’s cake format instead of making it only a shake ingredient.
The cake is also the centerpiece of a limited-time offer for Portillo’s Perks members. From October 12 through October 18, eligible members can get a slice for $1 with a purchase of $5 or more, subject to the offer’s terms.
What Is the Oreo Cake Shake?
The Oreo Cake Shake combines the cake and shake into one dessert by blending Oreo Cake into a hand-spun vanilla shake. Crushed OREO cookie pieces are added on top.
The idea is based on Portillo’s established Cake Shake concept, which blends cake directly into a creamy shake. This time, the cake itself carries the OREO flavor, making the new drink different from a standard cookies-and-cream shake.
When Did the New Portillo’s Oreo Desserts Launch?
The new Portillo’s Oreo desserts officially launched on October 6, 2026, with availability at participating Portillo’s locations nationwide. They are being offered for a limited time and are subject to supplies at individual restaurants.
Because Portillo’s has not announced these desserts as permanent menu items, their availability may end after the limited-time run.
How Long Will the Oreo Desserts Be Available?
Portillo’s has not given a specific final date for the Oreo desserts. All three will be available while supplies last, the company says.
Local availability is important. There may be a restaurant that still has the desserts available even if another restaurant has sold out of the desserts.
Why Did Portillo’s and OREO Team Up?
The partnership brings together two dessert ideas that already have a natural connection: OREO cookies and Portillo’s cake shakes. Portillo’s says the new lineup was developed around its existing cake and shake offerings, while OREO gets a new way to appear outside its traditional cookie format.
The timing also makes sense for Halloween, when seasonal desserts and limited-edition fast-food items tend to become part of the conversation.
Are the New Oreo Desserts Available Nationwide?
Yes. The Oreo Shake, Oreo Cake, and Oreo Cake Shake launched at participating Portillo’s locations nationwide on October 6. However, the company says they are available only for a limited time and while supplies last.
Portillo’s online ordering menu is also currently listing the Oreo Cake Slice, Oreo Shake, and Oreo Cake Shake at locations where they are available.
For another Halloween-themed OREO treat, check out our guide to OREO Halloween Monster Cookies 2026.
Portillo’s Fast Food Oreo Collaboration
The Portillo’s fast food Oreo collaboration brings a delicious twist to classic desserts with three exciting treats: the OREO Shake, OREO Cake, and OREO Cake Shake. This special partnership combines Portillo’s signature desserts with the iconic chocolate and creme flavor of OREO cookies. Whether you love creamy milkshakes, rich cakes, or both, these limited-time treats offer something for every dessert fan. Customers can visit participating Portillo’s locations to explore the new menu items and enjoy this unique fast-food dessert collaboration while supplies last.
Which Portillo’s Oreo Dessert Is Different From the Others?
Each of the three new Portillo’s Oreo desserts has a different format, so the biggest difference comes down to how the OREO flavor is used. The OREO Shake keeps things simple with crushed cookies blended into a vanilla shake. OREO Cake puts the cookie flavor into a white cake with OREO frosting and cookie pieces. The OREO Cake Shake takes the idea further by blending a slice of the OREO Cake directly into a vanilla shake and adding crushed OREO pieces on top. That makes the Cake Shake the option that combines elements of both of the other desserts in one item.
Final Takeaway
The new Portillo’s Oreo desserts give fans three distinct choices: a crushed-cookie vanilla shake, an Oreo-filled white cake, and a Cake Shake made by blending the Oreo Cake into vanilla ice cream. All three launched October 6 for a limited run tied to the Halloween season.
For anyone interested in trying them, the main thing to remember is that they are limited-time items, so availability can change as individual Portillo’s locations run out of supplies.