Ah yes, Brno is where I took that pic. Lovely place.never been to the Czech Republic but I have a friend in Brno and she used to bring nice cakes back with thin layers.
The Scandinavians do lots of nice open face sandwiches. Are you in or near London?
From London but living in Germany at the moment.
It’s worth going to Czech even just to eat. I still regularly dream of those sandwiches