Is there such a recipe?
You might want to do a search on this site. There was a very similar question asked earlier in the week, and a HUGE thread sometime back -- like over 10 pages long. HTH!!
There's a peanut butter fudge frosting/filling recipe on here that I've used with nutella instead of peanut butter. It is soooooo good!
i just made a chocolate cake last week and just added Nutella to my batch of vanilla cream cheese BC. It was very tasty!
Why not just spread the nutella on as a filling? That is what I do.