It's soon to be Shamrock Shake season. McDonald's Shamrock Shake, a milkshake made with vanilla soft-serve ice cream, artificially-flavored minty green syrup and whipped topping, will return to restaurants on Monday,

The beloved Shamrock Shake is coming back to McDonald's, along with a McDonald's character no one's seen since the 1980's: Uncle O'Grimacey.

A seasonal favorite will be back on the menu next week. Here's what we know about McDonald's Shamrock Shake and Oreo Shamrock McFlurry.

Who needs Groundhog Day—the Shamrock Shake’s return means spring has begun. Starting February 10 and running through March, the famously green vanilla-based mint milkshake topped with whipped cream will be available for purchase,