This recipe was deposited in the Bologna Chamber of Commerce, October 17, 1982, as the Official Bolognese Ragu Recipe (The Bolognese Chapter of the Accademia Italiana della Cucina announced this recipe is the official one on that date.)
This sauce is never served with spaghetti! It is served with tagliatelle or fettucine. Mirabel adds reconstituted dried Porcini to the sauce for depth. At home, Mirabel doubles the onion and adds extra tomato sauce for consistency. This day, we used no Porcini and she didn’t use the milk as she used tomato paste. The Bolognese tradition prescribes very long cooking of the sauce (at least 4 to 5 hours) but that is because the meat came from working animals and the muscle fiber required long hours to tenderize it. Today’s farm raised meats do not require such a lengthy tenderizing process.