01 - Preheat oven to 325°F.
02 - Pat the beef roast dry and season with salt and pepper.
03 - In a large Dutch oven or oven-safe pot, heat olive oil over medium-high heat. Sear the roast on all sides until browned (about 2 minutes per side).
04 - Remove the roast and set aside. Add onions, garlic, carrots, parsnips, sweet potato, and celery to the pot. Sauté for 3-4 minutes.
05 - Return the beef to the pot, nestling it among the vegetables.
06 - Sprinkle thyme, rosemary, and add the bay leaf. Pour in beef broth and apple cider vinegar.
07 - Cover and transfer to the oven. Roast for 2 hours, or until the beef is fork-tender and vegetables are cooked through.
08 - Remove the bay leaf. Slice the beef and serve with the vegetables and pan juices.