1 pkg. of large size yellow cake mix
1 pkg. of 4 serving size Jello pistachio instant pudding and pie filling
4 eggs
1 c. water
1/2 c. oil
1/2 tsp. vanilla
1/4 c. chocolate syrup

Combine cake mix, pudding mix, eggs, water, oil and vanilla in large mixing bowl. Blend at medium speed. Electric mixer for 2 minutes.

Measure 1 1/2 cup batter, stir in chocolate syrup. Spoon batters alternately into a greased and floured 10 inch bundt pan. Zig zag spatula through batter to marble.

Bake at 350 degrees for 50 minutes. Cool 15 minutes; remove from pan and finish cooling for remainder of time on rack. Sprinkle with confectioners' sugar or glaze.