Limited-time offerWhile supplies last

OREO Cake at Portillo's — launch date and LTO window

A moist white cake mixed with crushed OREO cookie pieces, iced with OREO frosting and topped with OREO cookie pieces.

Portillo's OREO Cake — Image from sporked.com. Shown for identification; rights remain with the publisher.

Key data

Portillo's launched the OREO Cake, announced October 6, 2026, available from October 6, 2026. It is a limited-time offer in the desserts & bakery category, available nationwide. This record is backed by 2 sources and 2 independent outlets.

The facts

Field	Value
Chain	Portillo's
Launch type	Limited-time offer
Announced	October 6, 2026
Available from	October 6, 2026
Available until	While supplies last
Price	Not stated
Markets	Nationwide
Channels	Not stated
Category	Desserts & bakery

Sources

Every published launch carries at least one source with a quote from the original announcement.

Consumer mediaOctober 11, 2026
“The first is the Oreo Cake itself, which you can order as a regular slice rather than having someone put it in a blender.”
sporked.com ↗
Trade mediaOctober 6, 2026
“OREO Cake : A delicate, moist white cake mixed with crushed OREO cookie pieces, iced with sweet OREO frosting and topped with OREO cookie pieces.”
qsrmagazine.com ↗