I wonder if Poles try iskembe ćorbasI when holidaying in Turkey. This is their version of tripe soup. It isn't as peppery as flaki but they sometimes add vinegar at the table to give it a bit of a bite. It is considered to be a hangover cure, or rather a hangover prophylactic as it is eaten after a night's drinking.
In Mexico they have a tripe soup very similar to
flaki. The difference was that the broth was tangy. They serve it for breakfast (hangover curing link here?).