1 box chocolate cake mix
1 pkg. (sm.) instant chocolate pudding (not nutra-sweet)
1 c. sour cream or plain yogurt
3 eggs
2/3 c. oil
1/3 c. Kahlua or strong coffee
6 oz. chocolate chips
1/2 c. water

Mix everything except chocolate chips. Beat for 3 minutes on medium. Stir in chocolate chips. Pour into well greased Bundt pan. Bake at 350 degrees for 50-60 minutes. To serve, sprinkle with powdered sugar.