How to Make It
Whisk together cake mix and next 6 ingredients.
Line bottom and sides of a 6-quart slow cooker with aluminum foil, allowing 2 to 3 inches to extend over sides. Lightly grease foil with cooking spray. Add half of batter, and sprinkle with morsels. Top with remaining batter. Cover and cook on HIGH 1 ½ hours or until set. Remove lid; let stand 30 minutes. Lift cake from slow cooker, using foil sides as handles. Serve warm with whipped cream or ice cream.