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["Place dried mushrooms and dried apples in separate small bowls. Add 1 cup boiling water to each bowl. Let mushrooms and apples soak until very soft, about 30 minutes. Strain mushrooms. Cover and chill soaking liquid (about 3/4 cup). Drain apples, discarding soaking liquid. Finely chop mushrooms and apples, combine in a small bowl, and set mushroom and apple mixture aside.", "Meanwhile, blanch kale in boiling salted water just until wilted, about 1 minute. Using tongs, transfer kale to a rimmed baking sheet. Refrigerate until cool. Remove any large, tough ribs.", "Melt butter in a large skillet over medium heat. Add onion; cook, stirring often, until soft and lightly golden, about 8 minutes. Add mushrooms and apples; cook, stirring occasionally, until flavors meld, about 5 minutes. Stir in garlic, thyme, and rosemary; cook for 1 minute. Add brandy and cook until liquid is absorbed, about 1 minute. Stir in 2 teaspoons salt and 1/2 teaspoon pepper. Transfer mixture to a bowl and let cool completely. Add ground pork and stir to combine well.", "To butterfly, put pork loin on a work surface with short end facing you. Holding a long, thin sharp knife parallel to work surface and beginning along one long side, cut 1/2"" above underside of roast. Continue slicing inward, pulling back the meat with your free hand and unrolling the roast like a carpet, until the entire loin is flat. Cover with a sheet of plastic wrap. Using a meat mallet, pound to an even thickness.", "Uncover pork. Season with 1 teaspoon salt and 1/2 teaspoon pepper. Place kale leaves on top of loin in an even layer, overlapping as needed and leaving a 1"" border. Spread filling on top of kale. Roll pork into a tight cylinder. Wrap one layer of prosciutto around roast. Tie roast securely with kitchen twine in 1"" intervals. Tuck rosemary sprigs under twine, spacing apart. DO AHEAD:", "Preheat oven to 400u00b0F. Place apples in a roasting pan. Melt 1 tablespoon butter with oil in a large skillet. Brown pork on all sides, about 5 minutes total, then set on top of apples in pan. Add cider and 1/2 cup water to skillet and bring to a boil, scraping up browned bits. Pour mixture into roasting pan. Roast pork until an instant-read thermometer inserted into center of loin registers 140u00b0F (it will be cooked medium but still slightly pink), about 1 hour 40 minutes. Let roast rest for at least 20 minutes and up to 2 hours.", "Put roast on a platter. Reserve apples from roasting pan; spoon off fat from juices in pan. Place pan on top of stove over medium-high heat. Add chicken stock. Pour in reserved mushroom liquid, leaving any sediment behind, and cook, scraping bottom of pan to release any browned bits, until slightly thickened, about 5 minutes. Whisk in remaining 2 tablespoons butter and season to taste with salt and pepper. Strain sauce; slice pork. Serve sauce and apples alongside sliced pork."]
