I played around with a chocolate cake mix (from Aldi's no less) and ended up with this moist, rich, cake.  At the end of the evening, the piece in the picture was all that was left of the cake.

Pre-heat oven to 350F   Prepare baking pans according to directions on box.  I use cocoa instead of flour in my pans when I make a chocolate cake.

1 box chocolate cake mix

1 pkg. instant chocolate pudding

1 cup brown sugar

Mix dry ingredients

Add:

1 cup sour cream

1 cup oil

1 1/3 cups water

3 eggs (one at a time)

Mix batter, on medium, for 3 minutes.  Pour into prepared pans.  Baking time will vary according to oven.  I did a sheet cake and it took just about 50 minutes.

I frosted with a butter cream frosting, but the last time I made this, I just sprinkled confectioners sugar on it.