It first debuted in 2007. QSRweb reports Jack in the Box is bringing back its Blackberry shake, for a limited time.

…Available in 16- and 24-ounce sizes, the new Blackberry Shake is made with real ice cream and blackberry-flavored syrup and features whipped topping and a Maraschino cherry on top…

“Summer is just around the corner, and the more our weather heats up, what better way to cool down then with a delicious shake?”