How Wendy's combined their classic Frosty with a beloved Girl Scout cookie

Wendy's Frosty's is a beloved treat — and a new addition to the lineup will combine the familiar frozen dairy dessert with a beloved Girl Scout cookie.

Frosty's have been a staple of the Wendy's menu since the late 1960s when founder Dave Thomas decided to add a frozen treat to it. The drink has only grown in popularity. Last year, the chain served 500 per minute in the United States. The Frosty falls somewhere between soft serve and hard-packed ice cream, creating a frozen creamy treat that's stood the test of time. 

For decades, just one flavor — chocolate — was available. In 2006, vanilla joined the lineup. In 2022, the fast-food chain started trying new limited-edition flavors.