The frozen dessert is essentially a shake in a parfait cup topped with a sundae. Specifically, you can get a shake of your choice topped with a choice of ice cream and one sundae topping plus whipped cream, nuts, and a maraschino cherry.
The Sundae Shake costs $2.39 in the Detroit area (may vary in other markets).
This isn't the first time the new mash-up dessert has been spotted in the wild, it was testing in the Nashville, TN area as early as May of last year.
Photo via Baskin-Robbins.
