Ragù alla Bolognese Recipe (Bolognese Meat Sauce) | Saveur

Ingredients

• ¼ cup extra-virgin olive oil
• 1 small yellow onion, finely chopped
• 1 celery stalk, finely chopped
• ½ medium carrot, peeled and finely chopped
• 1 oz. prosciutto di Parma (2–3 slices), finely chopped
• 2 chicken livers, finely chopped
• 1½ lb. ground beef chuck
• Kosher salt and freshly ground black pepper
• ½ cup dry white wine
• 1 cup whole milk, warmed
• 1 cup beef, veal, or chicken stock
• One 28-oz. can tomato purée