The drink, as described by the menu, includes espresso, oat milk, and a horchata syrup which is a blend of cinnamon, vanilla, and rice flavors, creating a sweet, creamy, and slightly nutty taste

Starbucks' summer menu launches May 20 and features new and returning items. The Iced Horchata Oatmilk Shaken Espresso is a new addition featuring oat milk and horchata-flavored syrup. The popular Summer-Berry Starbucks Refreshers return with raspberry, blueberry, and blackberry flavors.