Betty Crocker Ultimate Cookie Mix for $1.98 at Walmart! Normally $3.48 Posted by Harbor Master on 25 October 2017, 7:39 pm Tweet Walmart sells Betty Crocker Ultimate Cookie Mix 20.4oz oz. Box for $3.48. Just $1.98 after the $1.50 Ibotta Rebate. Even cheaper if you have a coupon to stack with the Ibotta offer. Submit for $1.50 Cash Back from Ibotta when you purchase Betty Crocker Ultimate Cookie Mix for any variety 20.4oz Box only