I have never tried either. This is SUCH a moist cake on its own I never saw the need. Hope someone else can help.
I am wanting to make this recipe and was wondering if anyone has added sour cream and/or pudding to it. If so, do I need to alter the amount of the rest of the ingredients if I add these two in the mix? Any help would be greatly appreciated.
This is one of my FAVORITE cake recipes. It really doesn't need the sour cream or pudding. I'd suggest you try it before making any adjustments. I think you'll love it just as is!
Happy Baking! 
I agree with everyone else, this is a great recipe! I tried it for the first time a couple months ago... I thought about adding sour cream as well, but it really doesn't need it. The only thing I did do was sub coffee for the liquid... as I do for all my chocolate cakes.
I guess I'm the dissenting voice....I substitute sour cream for the milk, because I like the texture and rich flavor better. I think the cake is a bit too soft with milk AND boiling water. JMHO 
I substitute sour cream for the milk and coffee for the water. Makes a wonderful, rich chocolate cake
Is there a link for this recipe? I've heard about it here, but have never seen the recipe.
http://www.hersheys.com/pure-recipes/184/HERSHEY%27S
YOu'll love it! It's also on the can.
I have made it plenty of times per recipe. I will try using the sour cream next time INSTEAD of the milk. I usually use coffee also. some of the posters are getting confused by thinking you add this instead of substituting. It sounds great using the sour cream. thanks
I use buttermilk in place of the milk and hot strong brewed coffee instead of plain hot water! Soooo amazing!
I use coffee, too....is that what they call black magic cake??
I also do something that I saw Sylvia Weinstock does to her chocolate cake--instead of adding boiling water to the batter at the end of mixing, stir the boiling water (or fresh hot coffee) with just the cocoa powder and allow to cool slightly before adding to the other ingredients.
This is the only chocolate cake recipe I use!
So you add the boiling water with the liquid ingredients.
As I read this, isn't this a dump cake of sorts even though the dry and wet are added separately?
I have never made one for fear it would fail. I guess I'll have to give it a go. I like the chocolate cake recipe I have so much, I stopped looking for any other one.
Quote by @%username% on %date%
%body%