01 -
Heat the olive oil in a Dutch oven over medium-high heat. Season the short ribs with salt and pepper, then sear them on all sides until browned, about 3-4 minutes per side. Remove the short ribs and set aside.
02 -
Reduce the heat to medium and add the butter to the same pot. Add the sliced onions and cook, stirring occasionally, for 25-30 minutes until golden and caramelized. Stir in the minced garlic and cook for an additional 1-2 minutes.
03 -
Return the short ribs to the pot and add the beef broth, Worcestershire sauce, bay leaf, and thyme. Bring to a simmer, then reduce the heat to low and cover. Simmer for 2-3 hours, or until the short ribs are tender and falling off the bone. Remove the short ribs and shred the meat. Discard the bones and return the meat to the pot.
04 -
Preheat your broiler. Ladle the soup into oven-safe bowls. Place a slice of toasted baguette on top of each bowl and sprinkle generously with shredded Gruyère. Place the bowls under the broiler for 2-3 minutes, or until the cheese is melted and bubbly.
05 -
Carefully remove the bowls from the oven and serve hot, garnished with a sprinkle of fresh thyme if desired.