World’s Largest Shamrock Shake to Pour into Chicago River

This is what happened last year...

For the second year in a row, McDonald’s will create the “world’s largest Shamrock Shake,” which will ceremoniously spill into the Chicago River on Friday, “thereby contributing to the vivid emerald green color of the water.” Yum! Of course, this is all for a good cause, namely to help build a new Ronald McDonald House in Streeterville.