Austrian Sacher Torte https://www.epicurious.com/recipes/food/views/sachertorte-231043
For our family it is Buche De Noel
The Sacher Torte is one of the first ‘fancy’ things I tried, when I got into cooking in my teens. I think I found it in that Time-Life ‘Foods of the World’ series of cookbooks that were in the local public library.