1 (18.25 ounce) package chocolate cake mix
1 (4 serving size) package instant chocolate pudding mix
4 eggs
1/2 cup oil
3/4 cup water
1 cup sour cream
1 cup semi-sweet chocolate chips

Heat oven to 350°F. Grease and flour two 8 or 9 inch pans. Beat together all but chips till smooth. Add chips. Bake 35-40 minutes.