3 standing rib roast porcini sauce Recipes

garlic cloves, fresh thyme leaves, olive oil, coarse kosher salt, coarsely ground black pepper, beef rib roast, porcini and bacon sauce, horseradish cream sauce, green onion-parmesan popovers

well-trimmed 8- to 9-lb rib roast (with 4 bones ), crushed dried rosemary, divided, coarse kosher salt, freshly ground black pepper, olive oil, boiling water, dried porcini mushrooms, butter, room temperature, divided, fresh button mushrooms , cut into 1/4-inch-thick slices, garlic cloves, minced, all purpose flour, low-salt beef broth, dry red wine, fresh rosemary (for garnish )