Use a chocolate cake mix
Preheat oven to 350°F
Grease or line a baking pan
Combine cake mix with 2 eggs
Add 1/2 cup melted butter or oil
Add 1/4 cup water or milk
Mix until thick and smooth
Stir in chocolate chips if desired
Spread batter evenly in the pan
Bake for 20 to 30 minutes
Check with a toothpick for moist crumbs
Cool completely before cutting