01 - Preheat the oven to 300°F.
02 - Pat the beef chuck roast dry with paper towels. Season generously on all sides with kosher salt and freshly ground black pepper.
03 - Heat olive oil in a large Dutch oven over medium-high heat. Sear the roast on all sides until deeply browned, about 4–5 minutes per side. Transfer the roast to a plate and set aside.
04 - Add the quartered onion, carrot pieces, and celery chunks to the same pot. Cook for 4–5 minutes until the vegetables are lightly browned. Stir in the smashed garlic and tomato paste, cooking for 1 minute until fragrant.
05 - Pour in the dry red wine and scrape the bottom of the pot to release all the browned bits. Simmer for 2–3 minutes to reduce slightly.
06 - Return the seared roast to the pot. Add the beef broth, dried thyme, fresh rosemary sprigs, and bay leaves. Bring to a simmer, then cover with a tight-fitting lid.
07 - Transfer the covered Dutch oven to the preheated oven. Cook for 3 hours, or until the roast is fork-tender and the vegetables are soft.
08 - Remove from the oven and discard the bay leaves and rosemary stems. Slice or shred the beef and serve with the braised vegetables and pan juices spooned over the top.