1 yellow cake mix
3/4 c. oil
1/2 c. chocolate syrup
1 c. sour cream
1 small pkg. chocolate chips
1 small pkg. instant vanilla pudding
4 eggs
1 tsp. vanilla

Mix everything but chocolate chips and syrup. Split batter in 1/2, put chips in one half and syrup in other 1/2. Put chocolate chip mixture in a well greased bundt pan, layer syrup mixture on top and swirl.

Bake at 350°F for 45 to 60 minutes.