Maulwurfskuchen - Mole cake (You can guess where the name comes from :D )
A chocolate sponge cake, hollowed out and filled with bananas, chocolate chips, and whipped cream. The crumbs are then used to decorate the dome.
I will post the recipe if someone's interested.
(P.S. No moles were harmed in the making of this post!)
What you describe is also my understanding so I guess you're well informed, even if you don't bake yourself ^^
Thank you for the detailed explanation!