Preheat oven to 150℃ (130℃ fan forced). Heat 1 tablespoon of olive oil in a flameproof casserole dish or Dutch oven over medium high heat. Season beef generously with salt and pepper. Brown the beef all over, really well until it has a good sear and colour on it. Transfer to a plate and set aside.
Reduce the heat to medium and add the remaining olive oil along with the butter. Add the onion, celery, carrot and a good pinch of salt and cook, stirring often, for 7-10 minutes or until the vegetables are soft.
Add the garlic, oregano and bay leaf, cook, stirring, for a further 2-3 minutes then add the anchovies and tomato paste and cook, stirring, for another 2 minutes.
Increase heat to medium high and pour in the wine. Allow it to deglaze and bubble up for 1 minute before returning the beef (and any juices) along with the tomatoes and beef stock. Bring to the boil then cover with the lid. Transfer to the oven and cook for 3hr - 3.5 hrs, stirring a couple of times throughout cooking, until the the beef is very tender and can pull apart (you should be able to easily break apart with a spoon).
Once beef is tender, remove the beef from the pan using tongs and set aside to cool slightly. Once cool enough to handle, shed the meat with a spoon or 2 forks. Set aside.
Meanwhile, return the pan to a medium high heat on the stove and simmer the sauce rapidly, uncovered, for 10-15 minutes or until reduced and thickened slightly.
While the sauce is reducing, cook the pasta according to packet directions in a large saucepan of boiling salted water.
Once the sauce has reduced, return the beef to the pan and season to taste with salt, pepper and sugar, if you think it needs it.
Using tongs, directly add the pasta from the cooking water to the beef sauce and toss gently to combine. (You can also drain the pasta over a colander, reserving some of the cooking liquid to add the beef sauce if required to thin it slightly).
Divide pasta and sauce between serving plates. Garnish with parmesan cheese and roughly chopped herbs of your choice. Serve with your choice of sides if desired. (See notes in post above for serving suggestions)