Shamrock Shakes are more than a St. Patrick's Day treat thanks to the Philadelphia Eagles, who used them to fund the first ...

Before long, McDonald’s took the idea and spread it around to other McDonald’s across the U.S. By the time McDonald’s founder Ray Kroc wrote his memoir Grinding It Out a decade later, the Shamrock ...

McDonald's brings back Uncle O'Grimacey, the beloved green mascot, to celebrate the return of the Shamrock Shake.

An old-timey McDonald's character is making a comeback this month—and we have all the details below. Can you guess who it is?