3 roast rib horseradish crust florence Recipes

bone in prime rib beef roast , 3 ribs, about 6 lb, garlic cloves, smashed, grated fresh or prepared horseradish, leaves from 2 fresh rosemary sprigs, leaves from 4 fresh thyme sprigs, kosher salt, freshly ground black pepper, extra-virgin olive oil, dry white wine, all-purpose flour, canned chicken or beef broth, heavy cream, fresh thyme, garlic cloves, chopped, ground nutmeg, butter, russet potatoes, peeled and cut into 1/8-inch thick slices, salt and freshly ground black pepper, grated parmesan, plus more for broiling, butter, balsamic vinegar, honey, fresh thyme, salt and freshly ground black pepper, red onions, halved

rib ) prime beef roast, about 6 lb, garlic cloves, smashed, prepared horseradish, needles from 2 fresh rosemary sprigs, leaves from 4 fresh thyme sprigs, sea salt, freshly ground black pepper, extra-virgin olive oil, carrots, cut in chunks, parsnips, red onions, halved, head garlic, halved