Preheat oven to 350°
Prepare 2-8" round cake pans with baking spray or a 13x9 pan or 2,5liter casserole dish, so the cake removes easily. Wrap the round layer cake pans with wet baking strips for even non-domed layers.
Pour the cake mix, oil, eggs, water, and pudding mix into a bowl and mix with a fork or whisk, until silky smooth and well blended.
Add the chocolate chips and stir., you can sprinkle some on top of a 13x9 so you can see them after it bakes.
Bake the cake in a well-heated oven for 25-30 minutes or until a toothpick comes out clean.
Allow the cake to cool for 10 minutes then turn it out on a cooling rack, or allow it to completely cool in the pan if not making a layer cake. Chill the 8-inch round cake layers for an hour, so they are set up and won't slide when you add the frosting.