Shamrock Shake

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Shamrock Shake
Shamrock Shake (6890328058).jpg
A customer's Shamrock Shake sitting on a table at McDonald's
Owner McDonald's
Country United States
Introduced 1970

The Shamrock Shake is a seasonal green mint flavored milkshake dessert sold at select McDonald's during March to celebrate St. Patrick's Day.


The Shamrock Shake was first introduced in 1970.[1] Rogers Merchandising in Chicago created the shake. Initially, the shake was lemon/lime flavored with vanilla ice cream, lemon/lime sherbet, and vanilla syrup. By 1973, the shake was merely a green colored vanilla shake, eliminating the lemon/lime sherbet. It is now mint flavored.

Shamrock Shakes are sold at select U.S.[2] and Canadian stores during the months of February and March,[1] as well as in Ireland.[3]


During the 1980s, McDonald’s used the Uncle O'Grimacey character to market Shamrock Shakes, which was a green version of Grimace who came to visit in March. McDonald's has since phased out that character from their mascot lineup.

In 1980, McDonald's introduced the Shamrock Sundae which consisted of vanilla ice cream topped with a mint green Shamrock syrup. The product was discontinued after one year due to poor sales.[2]

In 2017 McDonald's introduced a few variants of the Shamrock Shake including the Shamrock Chocolate Shake, the Shamrock Chocolate Chip Frappé, the Shamrock Mocha, and the Shamrock Hot Chocolate.[4]

In popular culture[edit]

  • In The Simpsons episode "Stop or My Dog Will Shoot", Chief Wiggum and Lou debate whether the Shamrock Shake is just a vanilla shake dyed green, or if it is actually mint-flavored. Lou insists the chief only thinks he tastes the mint because the shake is green.
  • In a Family Guy episode where Stewie abducts the entire cast of Star Trek: The Next Generation, he takes them to McDonald's. Jonathan Frakes requests a Shamrock Shake, to which Stewie reacts that they have been discontinued as it is September.
  • In This Is Us season 2 episode 9 ("Number Two"), Toby makes a healthy shake which he compares to a shamrock shake.
  • In the American Dad! episode "The Life and Times of Stan Smith", Stan discovers that in heaven (after confusing it for Ireland), Shamrock shakes are available all year round.


  1. ^ a b Huguenin, Patrick (2007-03-16). "Shamrock Shake Shocker: It's Disappeared!". The New York Daily News. p. 46. Archived from the original on 2009-03-16. Retrieved 2009-04-07. 
  2. ^ a b "Ultimate Shamrock Shake Guide". Gluttoner. Retrieved 18 October 2012. 
  3. ^ Associated Press (2012-02-08). "McDonald's offers Shamrock Shake nationally". Asheville Citizen-Times. Retrieved 2012-02-08. [dead link]
  4. ^ Saelinger, Tracy. "McDonald's has 4 new chocolaty Shamrock Shakes and we tried them all". 

External links[edit]