Duncan Hines devils food cake

1 small package instant chocolate pudding mix

4 eggs

8 ounces non fat vanilla yogurt

1/2 cup oil

1/3 to 1/2 cup water

12 ounces chocolate chips 

Mix first 6 ingredients, then fold in chocolate chips.
Pour into greased and floured bundt pan and bake at 350 degrees for 50 minutes.