Turkey Noodle Soup

Name: Turkey Noodle Soup
Ingredients: Bones from 1 roasted turkey; 6 fresh thyme sprigs; 4 fresh parsley sprigs; 2 bay leaves; 2 carrots, cut into large pieces; 2 celery stalks, cut into large pieces; 1 head of garlic, cut in half crosswise; 1 large onion, quartered; 1 tsp. whole peppercorns; 1 tsp. kosher salt; 2 tbsp. salted butter; 3 carrots, sliced; 3 celery stalks, sliced; 2 parsnips, sliced; 1 small yellow onion, chopped; 2 tsp. kosher salt; 1/2 tsp. ground black pepper; 3 garlic cloves, finely chopped; 2 tbsp. all-purpose flour; 1 tbsp. fresh thyme leaves, chopped; 8 oz. wide egg noodles; 3 c. shredded roasted turkey meat; 1 c. heavy cream; 1 tsp. sherry vinegar; 1/2 c. fresh parsley leaves, chopped, plus more for serving