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.

Grimace and Uncle O’Grimacey are welcoming the Shamrock Shake back to restaurants nationwide on Monday, Feb. 10

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.

McDonald’s is bringing back its beloved Shamrock Shake with the help of an old friend. The minty green milkshake will return to restaurants on Monday, Feb. 10 — and the chain’s Uncle O’Grimacey character is returning after a decades-long hiatus to help kick off the annual “Shamrock Season.”

One of the most recognizable holiday treats at McDonald's is making its return, along with one of Grimace's relatives.

McDonald’s is days away from officially launching the return of a seasonal favorite: the Shamrock Shake. The celebratory St. Patrick’s Day drink will arrive on Feb. 10, just over a month before the holiday arrives.

Together, Grimace and Uncle O’Grimacey are supporting Ronald McDonald House Charities (RMHC) and their mission to keep families together, celebrating the 50th anniversary of the first Shamrock Shake fundraiser.

The Shamrock shake is coming back to menus at McDonald’s restaurants nationwide beginning on Monday. The green shake has been a seasonal staple for more than 50 years. It will be back on menus nationwide beginning on Feb.

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,