Add some oil into a pan and fry the panacetta until it browns and becomes crispy
Add the mince and cook until brown
Peel and chop the onions, carrot, celery, garlic and mushrooms and add them to the mince mixture, stirring well.
Add the tomato purée to the pan and cook for a few minutes, stirring to coat everything with the purée.
Add the red wine and the beef stock and simmer until the liquid reduces by half.
Add the tin of tomatoes and the Lea and Perrins Worchestershire sauce to the pan.
Simmer gently for 45 minutes.
To make the spaghetti bring a pan of salted water to the boil and add the pasta. Cook for around 8 - 10 minutes.
Place the spaghetti on a plate and add some bolognese to the top.
Sprinkle on some parmesan cheese and the chopped basil