1. Preheat your oven to 325°F (165°C).
2. Season the beef chuck roast with salt and pepper.
3. Heat olive oil in a Dutch oven over medium-high heat. Sear the beef on all sides until browned. Remove and set aside.
4. In the same pot, add the sliced onion and cook until softened. Add the minced garlic and cook for another minute.
5. Stir in the tomato paste, cooking for another 2 minutes.
6. Pour in the red wine, scraping up any browned bits from the bottom of the pot. Let it simmer for a few minutes.
7. Add the beef broth and thyme sprigs. Return the beef to the pot.
8. Cover the Dutch oven with a lid and transfer it to the preheated oven. Braise for about 3 hours, or until the beef is tender.
9. Remove the beef from the pot and let it rest for a few minutes before slicing. Serve with the braising liquid.