This is the most delicious chocolate cake I have ever had. It is moist and awesome. No frosting necessary. Though a scoop of vanilla ice cream and homemade hot fudge on top takes it up a notch.
Mix chocolate cake according to directions on back of cake box.
Add chocolate pudding powder and sour cream - mix thoroughly.
Pour into 13 x 9 pan that has been greased and floured. Sprinkle chocolate chips on top of batter and smooth over.
Cook @ 350°F for 45-60 minutes. Knife or toothpick will come out clean if done. Cool on rack.
Serve with ice cream and hot fudge sauce.