Wash the chervil, shake dry and chop the leaves coarsely. Dab meat dry, cut lengthwise to 2/3 and open. Season inside with salt and pepper. Spread the plums, chervil and sultanas in the middle of the meat, then fold up and tie into shape with kitchen twine. Season with salt and pepper
Heat the oil in a frying pan. Brown the roast in it all around for about 5 minutes. Peel and crush garlic. Peel and halve shallots. Add shallots and garlic cloves to the roast and fry for 2-3 minutes. Deglaze with wine, cover and stew at medium heat for about 1 hour
Cook the pasta in boiling salted water according to the instructions on the packet. Let roast rest for about 5 minutes before cutting. Remove kitchen string and cut roast into slices. Serve with pappardelle and gravy. Garnish with chervil