"Uncle O’Grimacey is currently visiting all the way from Sham Rock, Ireland, touring the country with shakes in hand and spreading shamrock cheer," McDonald's said on Monday, March 17.

NEW IN 2025: For every Shamrock Shake purchased (in participating stores) between Feb. 10 and March 23, McDonald's will donate $0.25 to Ronald McDonald House Charities.

According to McDonald’s, the Shamrock Shake was invented in 1967 by a McDonald’s owner/operator based in Connecticut named Hal Rosen. The mint shake, of course intended to celebrate St ...

The Shamrock Shake was created in 1967 by Connecticut McDonald’s owner and operator Hal Rosen in celebration of St. Patrick’s Day. It debuted nationally in 1970.

Through March 23, 25 cents from every Shamrock Shake sold at participating McDonald’s will be donated to Ronald McDonald House Charities, with a goal of $5 million.

The Shamrock Shake is the neon green, mint-flavored milkshake made with vanilla soft serve ice cream and whipped cream that drops each year in time for St. Patrick’s Day. McDonald’s is ...

McDonald’s has a goal to raise $5 million this Shamrock Shake season for charity, which it said is the equivalent of 50,000 overnight stays for families in its RMHC programs.

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 Shamrock Shake 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 ...

Like that, the Shamrock Shake season comes and goes—leaving behind a trail of sugar highs, green-stained tongues, and enough memes to last until next year. Some will move on, patiently waiting for its ...

McDonald’s Shamrock Shake is returning on Feb. 10, available at participating locations nationwide. The fast-food chain is bringing back Uncle O’Grimacey, a long-lost McDonaldland character ...