Remove short ribs from pot and reduce heat to medium. Add diced onion, brown sugar, nutmeg, cayenne pepper, white pepper, smoked paprika, and a few pinches of salt and pepper, and cook until onion starts to turn translucent and is fragrant (about 3 minutes). Add garlic and cook for another minute.
1 tablespoon brown sugar, 1 teaspoon nutmeg, ½ teaspoon cayenne pepper, ½ teaspoon white pepper, ½ teaspoon smoked paprika
Stir and scrape the pot to unstick any caramelized bits then add the short ribs and any of their juices back to the pot.
Add in beef broth, orange juice, worcestershire sauce, and bay leaves, then bring to a light boil (about 8 minutes).
2 cups beef broth, ½ cup orange juice, 1 tablespoon Worcestershire sauce, 2 bay leaves
Braise the Ribs
Turn off heat, then carefully add carrots to Dutch oven around ribs and cover with lid. Transfer to middle rack of oven and cook for 3 hours or until meat is fall off the bone tender then remove from oven. (The short ribs should be nearly covered with liquid before braising. Depending on the size of your pot, you may need to add more broth to achieve this.)
Scoop the carrots out of the pot with a slotted spoon and reserve the cooking liquid for later use.