This is my absolute FAVORITE chocolate cake. It is very rich - it definitely lives up to it's name! I got the recipe from AllRecipes.com.
Too Much Chocolate Cake
1 (18.25 oz.) box Devil's Food Cake mix
1 (5.9 oz.) package instant chocolate pudding mix
1 cup sour cream
1 cup vegetable oil
4 eggs, beaten
1/2 cup warm water
2 cups semisweet chocolate chips.
Preheat oven to 350.
In a large bowl, mix together the cake and pudding mixes, sour cream, oil, beaten eggs, and water. stir in chocolate chips and pour batter into a well greased 12 cup bunt pan. (For other pans, follow the time on the cake mix box. You may need to cook a bit longer, start checking it at the time specified on the box. A clean toothpick means it's ready - just don't hit a melted chocolate chip!)
Bake for 50-55 minutes until top is springy to the touch and a toothpick inserted comes out clean. Cool cake thoroughly in the pan for at least an hour and a half before inverting onto a plate.