Testaccio, · Rome, · Lazio Techniques

Rome's celebrated oxtail braise — the definitive Roman offal preparation. Oxtail segments braised for 4+ hours in a soffritto of celery, carrot, onion, tomato, white wine, with the ancient vaccinaro (slaughterhouse worker) finishing sauce: celery hearts, pine nuts, sultanas, bitter cocoa, and sometimes candied citron peel added in the final 30 minutes. This sweet-sour-bitter finishing sauce is what separates authentic coda alla vaccinara from simple oxtail stew. Originated in the Testaccio slaughterhouse district of Rome.

Rome's greatest offal preparation: oxtail slow-braised for 4-5 hours in celery, onion, garlic, cloves, and wine until collapse-tender, then finished with the characteristic 'quinto quarto' addition of cocoa, pine nuts, sultanas, and celery — a sweet-savoury finish that marks the dish as Roman and distances it from all other braised oxtail. The name refers to the vaccinaro (slaughterhouse workers) of the Testaccio neighbourhood who took oxtail as part of their payment in kind. The collagen from the tail creates a self-thickening, gelatinous sauce.