So here's the recipe. It looks easy, but.....
....it's in German. I tried to figure it out and post it in English, but the internet translator kept giving me the same words back. As far as I know, there's no word "einrieseln" in English.
I can struggle through the recipe if I desperately want to attempt this magnificent torte one day. Or perhaps I'll just go back to Germany and enjoy tante's.