Creating braised short ribs is a straightforward process when you follow these easy steps:

1. Preheat the Oven: Begin by preheating your oven to 300°F (150°C).
2. Season the Ribs: Generously season the short ribs with salt and pepper on all sides.
3. Sear the Ribs: In a large, heavy-bottomed pot, heat olive oil over medium-high heat. Sear the short ribs until browned on all sides, about 3-4 minutes per side. Remove and set aside.
4. Sauté Vegetables: In the same pot, add the onion, carrots, and celery. Sauté for about 5 minutes, until softened. Then add garlic and cook for an additional minute until fragrant.
5. Deglaze the Pot: Pour in the red wine and scrape up any brown bits from the bottom of the pot. Let it simmer for 2-3 minutes, allowing the alcohol to cook off.
6. Add Remaining Ingredients: Stir in the beef broth, tomato paste, Worcestershire sauce, thyme, and rosemary. Bring the mixture to a gentle boil.
7. Return Ribs to the Pot: Place the seared short ribs back into the pot, ensuring they are submerged in the liquid.
8. Braise in the Oven: Cover the pot and transfer it to the preheated oven. Braise for 2.5 to 3 hours, or until the ribs are tender and easily pull apart with a fork.
9. Remove and Rest: Once cooked, remove the pot from the oven. Let the ribs rest in the sauce for about 30 minutes.
10. Serve: Carefully transfer the ribs to a serving platter and ladle the sauce over the top before serving.

By following these steps, you will create a dish that is not only delicious but also impressive enough for any occasion.