Preheat oven to 350°F.
Sear the Short Ribs. Pat the short ribs dry and season generously with salt and pepper on all sides.
Heat olive oil in a large Dutch oven over medium-high heat. Sear the short ribs on all sides until deeply browned, about 3–4 minutes per side. Transfer to a plate.
Sauté the Aromatics. In the same pot, add the onion, carrots, and celery and sauté until softened and golden, about 4–5 minutes.
Stir in the garlic and sauté for 30 seconds. Add the tomato paste and cook for 1–2 minutes until it darkens slightly.
Bloom the Spices. Add the coriander and allspice, stirring to bloom the spices in the oil for about 30 seconds.
Build the Braising Liquid. Pour in the red wine to deglaze, scraping up any browned bits from the bottom.
Return the short ribs to the pot. Add beef stock, pomegranate juice, and pomegranate molasses. The liquid should be about halfway up the ribs.
Nestle in the cinnamon stick, bay leaves, and herb bundle. Bring to a gentle simmer.
Braise the Short Ribs. Cover and transfer to the oven. Braise for about 2½ hours, or until the ribs are fork-tender and the sauce has reduced.
Once done, remove from oven and use a spoon to skim excess fat from the surface. Taste and adjust seasoning as needed.