1 (18.25 oz.) chocolate cake mix
1 (3.4 oz.) package instant chocolate pudding mix
2 cups sour cream
⅓ cup vegetable oil
½ cup water
2 cups semi-sweet chocolate chips
Preheat oven to 350 degrees. Grease and flour a 10-inch bunt pan. Beat all ingredients (except chocolate chips) until well blended. Fold in chocolate chips. Spoon batter (it will be thick) into prepared pan. Bake for 50 minutes to 1 hour. Cool for 15 minutes in the pan before turning out onto a wire rack to cool completely.