McDonald's "McDonaldland" meal made its official debut on Aug. 12. Here's what to know about the themed meal, including what's in it.

The "Mt. McDonaldland Shake" is inspired by the "vibrant blue 'lava' and pink clouds of Mt. McDonaldland," part of the McDonaldland fantasy world that entered pop culture in 1971. The shake is described as having "hints of berry flavor" and "colorful, cloud-like pink Dairy Whipped Topping made with real cream" on the McDonald's app.

The meal includes a choice of classic entrees including Chicken McNuggets or the Quarter Pounder, fries and a blue and pink milkshake in a “surprise flavor,” per Scripps News.