Shamrock Shakes are back at the restaurants. The Oreo Shamrock McFlurry has made a limited time return, as well. Start the day smarter. Get all the news you need in your inbox each morning. Shamrock Shakes sales do some good.

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.”

McDonald's announced when the Shamrock Shake will return. Here's what to know including what it tastes like, ingredients and how many calories it has.

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.

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

Saint Patrick’s Day is approaching, which means one thing to McDonald’s fans: The return of the Shamrock Shake.

McDonald’s brings back its Shamrock Shake for a limited time, featuring Uncle O’Grimacey and a charity campaign supporting Ronald McDonald House Charities.

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

The character known for his purple hue discovers an Irish uncle, on tap to promote the green-hued limited-edition Shamrock Shake.