Beat eggs with sour cream, add dry pudding and the cake mix and mix it with the whisk.
Pour water and oil into the mass, mix it until it becomes indiscreet and add chocolate chips, and carefully mix again.
Prepare the form, grease it with oil and throw in cocoa and sugar, shake off the extra baking powder, and pour the dough into the form.
Heat the oven to 350* and put the form in therefor 45 minutes. Check readiness with a toothpick. When the cake is cooked, leave it in the form for 5-10 minutes and then take it out.