The McFlurry blends vanilla soft serve with Shamrock Shake syrup and Oreo pieces in the limited-time treat. The sippable version omits the cookie crumble but has the same vanilla

McDonald's has brought it back. No, we're not talking about the McRib. If you missed it in December, you'll have to wait. The fast-food giant returned the Shamrock Shake and Oreo Shamrock McFlurry on Tuesday.

McDonald's announces the return of its Shamrock Shake and Oreo Shamrock McFlurry, revealing the official release date for the seasonal favorites.