Chain: McDonald's
Introduced: 1997

It's not quite a sundae, and it's not quite a shake; instead, it mixes the best of both world's. Soft serve blended with candy that doesn't turn out to be a soupy mistake, praise Mickey D's. You might not go to McDonald's just to order a cone, but a McFlurry? Game changed.

There are rumors that some franchises will blend an apple pie into a McFlurry for you, but they stand unconfirmed.