Pork Rib Roast With Pear-Thyme Sauce
["1 (10-rib) pork loin roast, trimmed of excess fat and ribs scraped clean of meat, fat and gristle", "3 garlic cloves, thinly sliced", "2 Tbsp. plus 1/2 tsp. thyme leaves", "kosher salt and freshly ground pepper", "2 Tbsp. olive oil", "2 medium onions, peeled and cut into thick wedges with root ends left intact", "4 medium Bartlett pears, halved, cored and cut into thick wedges", "1 1/2 qt. pear cider or apple cider", "4 thyme sprigs", "1/2 small cinnamon stick", "10 black peppercorns", "1 whole clove", "2 Tbsp. minced shallots", "30 tiny cherry tomatoes (for garnish)"]
["Make 20 small incisions all over the fatty side of the roast. Insert a slice of garlic in each slit. Season the meat all over with 2 tablespoons of the thyme leaves, 1 1/2 tablespoons of salt and 1 tablespoon of ground pepper. Cover and refrigerate overnight."]
["pork loin roast", "garlic", "thyme", "kosher salt", "olive oil", "onions", "Bartlett", "pear cider", "thyme", "cinnamon", "black", "clove", "shallots", "tomatoes"]