Shamrock Shake
It's from 1970, before you were born.
- Maker
- McDonald's
- Type
- Seasonal milkshake
- Debuted
- 1970
- Note
- returns each St. Patrick's season
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About
As of 2026, it's 56 years old.
The Shamrock Shake is a green, minty milkshake that shows up around St. Patrick's Day, vanishes, and spends the other eleven months being missed — proving that the fastest way to make people love something is to only sell it sometimes.
Around since 1970, it even has a genuinely sweet backstory: it helped fund the very first Ronald McDonald House. So the seasonal mint shake is also lowkey a charitable institution.
Cold, minty, and aggressively green, the Shamrock Shake is the annual sign that spring (and mild mint-flavored hysteria) has arrived.
Shamrock Shake through the years
Introduced
A green, mint-flavored milkshake tied to St. Patrick's Day.
Linked to Ronald McDonald House
Tied to the founding of the first Ronald McDonald House in Philadelphia.
