1 box chocolate fudge cake mix
1 lg. box (6 servings) instant chocolate pudding mix
1/3 c. kahlua or cream de cocoa liqueur
2/3 c. oil
4 eggs
2 c. plain yogurt
6 oz. chocolate chips

Combine cake mix, pudding mix, liqueur, oil, eggs, and yogurt. Beat until well blended. Stir in chocolate chips. Pour into a greased and floured bundt pan. Bake at 350 degrees for 50 to 55 minutes. Dust with powdered sugar.