1 pkg. white cake mix
3/4 c. oil
4 eggs
1/2 c. water
1/2 c. orange juice
1 tsp. vanilla
1 (3 1/2 oz.) pkg. instant pistachio pudding
1 (5 1/2 oz.) can Hershey's chocolate syrup

Blend first 7 ingredients (all but Hershey's syrup) and beat well. Pour 2/3 of batter into greased and floured bundt pan. Mix remaining batter with Hershey's syrup and pour over top of batter in pan. Bake at 350 degrees for 50 to 60 minutes. A thin confectioners' icing can be drizzled over cooled cake.