Preheat oven to 325°F. Season roast with salt, pepper, and 1/2 teaspoon thyme.
Add oil to Dutch oven and heat until oil ripples and is hot. Add roast and brown for 4 - 5 minutes on each side.
Add onions, garlic, beef broth, Worcestershire sauce, cooking wine, and remaining thyme. Cover with lid and cook 3 1/2 hours.
Remove from oven, and turn oven to broil.
Shred beef into large chunks; top with sliced baguettes and cheese.
Return pot to oven, uncovered, and broil until cheese begins to brown, additional 1 - 2 minutes.
Ladle into bowls to serve.