> Similar to eating a Danish pastry, like the Danish only made one type of pastry...

Amusingly, the danish pastry would be called "wienerbrød" meaning: bread from Vienna. like the Viennese only made one type of pastry...

Luckily, the Viennese don't call it something-from-somewhere, so the chain ends at 3. I wonder if there is a 4-chain of terms anywhere.

Another similar naming rabbit hole (hyper-local to Switzerland): https://de.wikipedia.org/wiki/Spanisch_Brötli.