1. Spray a 4 quart slow cooker with cooking spray.

2. In a large bowl, add the cake mix, pudding mix, eggs, water, oil, and sour cream and beat until smooth. Stir in the chocolate chips.

3. Pour mixture into the slow cooker and cook on low for 4-5 hours or until cake is set. Every slow cooker cooks at a different speed so make sure to check it at 4 hours. The cake will still be moist but not soggy. Remove pot from slow cooker so cake does not continue cooking.

4. Serve warm with a large scoop of vanilla ice cream.