I don’t remember the exact location, we were on holiday in Rome. We were on our way to a restuarnt called “I Porchettoni” after seeing it on Anthony Bourdain. Looks like the restaurant is rebranded to Trattori Pigneto. It’s not far from here but I can’t seem to find the exact street: maps.app.goo.gl/zaPqW2RCHkv8GYyE6