1 pkg. dark chocolate cake mix
1/2 pt. sour cream
1/2 c. vegetable oil
1 (12 oz.) pkg. chocolate chips
1 pkg. instant chocolate pudding
1/2 c. water
4 eggs

Stir all ingredients, except chocolate chips, in a large bowl and beat with electric mixer at medium speed for two minutes. Add chips. Pour mixture into greased or sprayed Teflon bundt cake pan and bake for one hour at 350 degrees. Cool right side up for 25 minutes. Turn out on cake rack to cool completely. Dust with powdered sugar to serve.