Generous chunks of Oreo cookies mixed with scoops of Ultimate Oreo ice cream, topped with hot fudge sauce, whipped cream, and more cookie crumbles! Ultimate Oreo may occasionally be made with our oat-based Ultimate Oreo ice cream when the traditional version is unavailable. Flavor and texture may vary slightly Note: This menu item may occasionally be made with an oat-based Ultimate Oreo ice cream when the traditional version is unavailable. Flavor and texture may vary slightly.