Preheat the oven to 350 degrees F.
Pour a glug of olive oil into a casserole type pan and put it on the heat. Add the onion, carrots, rutabaga, rosemary, thyme and bay leaves and cook gently for 10 minutes. Stir in the meat and the flour, pour in the wine and add a generous pinch of salt and pepper. Pour in the stock, there should be enough to just cover the meat. Bring to a gentle boil, put a lid on and place in the preheated oven for 1 1/2 hours, until the meat falls apart easily.
When the stew looks good, bring a very large pan of salted water to the boil and stir in the pappardelle. Cook according to the package instructions.
While the pasta's cooking, you can get your ragu sauce rockin' and rollin'! Remove the bay leaves from the sauce and add the butter to it. Beat in half the Parmesan and half the orange zest, just a hint will make all the difference. Place the lid on top. Pick and chop your parsley leaves now, you want them to be nice and fresh, with as much color and flavor as possible, so don't do this any earlier.
Drain the pasta in a colander, reserving some of the cooking water. Get everyone around the table, then toss the pasta with the sauce and the chopped parsley (you may have to do this in batches), adding some of the reserved cooking water if need be, to make the sauce silky and loose - very important for good texture. Taste and correct the seasoning. Serve with the remaining grated Parmesan and orange zest sprinkled over and a drizzle of good extra-virgin olive oil. What an incredible pasta dish!
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Recipe Excerpted from JAMIE AT HOME by Jamie Oliver. Copyright (c) 2008. Published in the U.S. by Hyperion. All Rights Reserved. www.jamieoliver.com