Frosty (frozen dairy dessert)
The dessert is a type of frozen dairy dessert. It was originally available as only chocolate, until vanilla was introduced in 2006 after repeated requests by consumers. 
The Frosty was invented by dairyman E.M. “Bill” Barker at the request of Wendy’s owner, Dave Thomas. When the first Wendy’s opened in 1969, chocolate, which is actually a combination of chocolate and vanilla (swirl), was the flavor of the original Frosty. Dave Thomas thought that 100 percent chocolate would be too overpowering a flavor when paired with a Wendy’s burger and fries meal. A second flavor, vanilla, was introduced in 2006.