>> i know. that was really really far in... pre-1970s standards before ice and refrigeration became more common. >> tucci: yeah. >> katie: so this is that honeycomb tripe with all those really beautiful pockets. >> yeah. >> katie: lots of nice stomach geometry going on. >> i've never heard it described as stomach geometry. it makes it sound much, much more palatable. that is really good. >> it's boiled multiple times often with vinegar, that tenderises it and cleans it, and then it's cooked in tomato sauce with pecorino and mint. so in rome... >> pecorino and mint? >> yeah. in rome this is really the only way you find tripe, in fact the dish is called''trippa alla romana'... >> ah yeah. >>...and go to another place, florence included, and the tripe is prepared differently. >> stewed stomach may not sound appealing, i know, but believe me, these are really tasty flavours. the roman poor didn't have much to work with but against the odds they wound up making some of the very best food in the city. what can i say? thanks a lot. thank you so