Ragu Alla Bolognese - 9Kitchen

Ingredients

• 2 tablespoons butter
• 60g bacon or pancetta, chopped
• 1 onion, finely chopped
• 1 carrot, finely chopped
• 1 celery stick, finely chopped
• 500g veal mince
• 500g beef mince
• 4 tablespoons tomato paste
• 1 cup red wine
• 2 bay leaves
• 2 cups beef stock
• 1/3 cup milk
• 1 chicken liver, finely chopped, optional
• 500g spaghetti or tagliatelle, to serve
• Parmesan cheese, to serve