You can choose from a Quarter Pounder with cheese or a 10-piece McNugget order. It also comes with the chain's famous french fries and your choice of drink. But the specialty drink that's made to go with the meal is called the Mt. McDonaldland shake, and it's a blazing blue color, topped with hot pink whipped cream.

Here's what to know about the new limited-time only shake on the McDonald's menu. What is a Mt. McDonaldland Shake? It's an ode to the volcano from McDonaldland. The shake is blue for the blue lava in the mountain and has pink whipped cream for the pink clouds above the mountain.

McDonald’s is bringing back its whimsical, fictional world and all of the brand's beloved characters for a themed meal, complete with a “first-of-its-kind” souvenir and a mystery-flavored blue and pink milkshake named for the Mt.