I haven't made this yet, but my friend Michelle has, and she loves it. Michelle says, "It serves 6 to 8 people. Or just me if it's been a bad day."
18 oz pkg chocolate cake mix
8 oz sour cream
1 cup chocolate chips
1 cup water
4 eggs
3/4 cup vegetable oil
1 four-serving-size box instant chocolate pudding
1) Lightly grease sides of crock pot
2) Mix all ingredients with a spoon or whisk in a bowl and pour into crock pot
3) Cover and cook on low 6-8 hours or high 3-4 hours. LEAVE LID ON while cooking. (removing lid lets out heat and moisture and causes edges to burn.)
4) Serve warm, topped w/ a scoop of vanilla or mocha ice cream.