1 pkg chocolate cake mix
1 (3 1/4 oz) pkg chocolate instant pudding mix
1 pint sour cream
4 eggs
3/4 cup vegetable oil
1/3 cup Kahlua liqueur
1 (6 oz) pkg semisweet chocolate chips

combine cake mix, pudding, sour cream, eggs, oil and Kahlua in a mixing bowl. mix on low speed until blended. add chocolate chips and mix well. pour mixture into a well-greased bundt pan. bake at 350 degrees for 1 hour or until cake tests done.