Duncan Hines chocolate cake mix (add extra flour for high altitude)
1 (6 oz.) pkg. instant chocolate pudding mix
1/2 c. water
1 c. sour cream
1/2 c. oil
4 eggs

Mix above ingredients well. Add 1 cup chocolate chips. Bake in greased and floured bundt pan for 35 to 45 minutes at 350 degrees.