McDonald's is gearing up for St. Patrick's Day by launching its popular Shamrock Shake, starting today! The seasonal treat, known for its minty flavor, blends vanilla soft serve with mint syrup, topped with whipped cream. In addition to the Shamrock Shake, McDonald's is also introducing the Oreo Shamrock McFlurry, featuring the same minty base with crushed Oreos. These festive items are expected to be available through St. Patrick’s Day.