| 3 | tb | Sweet (unsalted) butter |
| 1 | sm | White or yellow onion,; chopped fine |
| 1 | sm | Celery stalk,; chopped fine |
| 1/2 | sm | Carrot,; chopped fine |
| 1/4 | lb | Lean, good quality beef, preferably chuck,; ground twi |
| 1/4 | lb | Lean, good quality pork, preferably belly,; ground twi |
| 1/4 | lb | Lean, good quality veal,; ground twice |
| 1/8 | lb | Prosciutto crudo, thicksliced,; chopped |
| 1/2 | ts | Salt,; or to taste |
| | Fresh milled pepper to taste |
| 1/2 | c | Good quality, dry white wine |
| 2/3 | c | Milk |
| 1/8 | ts | Nutmeg,; preferably freshgrated |
| 2 1/2 | c | (1 28ounce can) Italian plum tomatoes, peeled, seeded and chopped, in puree |
| 1/2 | c | Cream (optional) |
| 1 | | White truffle, thinly sliced at the end; (optional) |
