Chop the onion, the carrot and the celery stick.
Put some olive oil in the pan and fry the vegetables until it’s softened.
Add the minced meat in the pan, mix all together and fry it until the meat is brown and sealed.
Add the wine, the tomato passata or plum tomatoes from the tin, water or stock, one bay leaf, salt and freshly grounded pepper, stir, reduce to a low simmer, cover with a lid and cook for 1 hour until you have a thick sauce. Stir it from time to time.
With 20 minutes before the Ragu (Bolognese sauce) it’s done, put a saucepan of water to boil and add 1 tsp of salt. When the water is at simmer, put the spaghetti inside and boil them for 10 minutes (or follow the time from the package) at a medium simmer.
When everything it’s done, put the spaghetti on the plate, add the Ragu sauce on top and grate some parmesan.
Buon appetito !