The Frosty has been a staple at Wendy's since founder Dave Thomas opened the first location in Columbus, OH more than 55 years ago in 1969. The beloved chocolate-flavored frozen dairy dessert hasn't undergone many updates over the years,

Both the chocolate and vanilla variations have the same swirl of Thin Mint flavor, in "a rich, minty cookie crumble sauce."

This is a brand-new Frosty flavor, and it’s a seasonal collaboration between Wendy’s and the Girl Scouts. I decided to try one even though I think Thin Mints are highly overra