.jpg) A "Shamrock Shake" sitting on a table at a McDonald's in 2012 | |
| Owner | McDonald's |
|---|---|
| Country | United States, Canada, Ireland |
| Introduced | 1967 (Connecticut) 1970 (select US locations) |
The Shamrock Shake is a seasonal green mint flavored milkshake dessert sold at some McDonald's restaurants during March to celebrate St. Patrick's Day in the US, Canada and Ireland.