SAN DIEGO--(BUSINESS WIRE)--Jack in the Box (NASDAQ: JACK) is offering Oreo® Cookie Mint Shake fans the luckiest deal on St. Patrick’s Day: a free Oreo® Cookie Mint Shake with any $1 minimum purchase on the Jack app or website. This St. Patrick’s Day staple is no sham: the fan favorite features real Oreo® cookie pieces mixed into the cool and minty shake, topped with whipped cream and a cherry. Oreo® Cookie Mint Shake is back for its much anticipated appearance at all Jack in the Box locations. Since its in ...