
The drink is a combination of icy slush and dairy, and comes in four flavours: Strawberry Shortcake, Cookies 'n' Cream, Chocolate Crumble and Caramel Crunch. It will be trialled in 21 outlets across the Midlands.
If the trial is successful, the drinks will be rolled out nationally, along with a healthier fruit variant.
At the beginning of the year, KFC added the Snackbox to its menu, an item that comprises chicken and fries, with the option to add a drink for 99p.
This has been aimed at young people through a TV campaign featuring students.