Spaghetti Bolognese

Equal parts beef and pork, browned hard in batches. Soffritto of onion, carrot, celery cooked down 20 minutes. San Marzano tomatoes, red wine, whole milk. Simmered uncovered for 6 hours until the fat rises red. Fresh spaghetti cooked just under al dente, finished in the ragù with pasta water. Parmigiano grated tableside.