Traditional Bolognese sauce

olive oil

unsalted butter

80/20 ground beef

ground pork

pancetta (chopped finely)

salt

black pepper

large onion (finely chopped)

celery stalks (finely chopped)

(1 large) carrot (finely chopped)

garlic cloves (grated or finely chopped)

white wine (or red if you prefer)

good quality can tomato puree

milk

beef stock