Season the short ribs with salt. In a large Dutch oven, add oil, and sear the short ribs over medium high heat until brown on all sides but not cooked through. Work in batches to avoid overcrowding the pan. After the short ribs are browned, remove from the pot, and set aside while you work on searing the rest.
1-2 tablespoons olive oil, 4 pounds beef short ribs, 3-5 teaspoons kosher salt
After searing the short ribs, strain off most of the rendered fat.
Reduce the heat to medium, then add in onions, carrots, and celery with a large pinch of salt and cook until the vegetables have deepened significantly in color, about 10 minutes.
2 medium yellow onions, 3 stalks celery, 2 large carrots
Add in tomato paste, and cook until deepened in color, about 3-4 minutes. Make sure to stir often to prevent burning.
6 ounces tomato paste
Next, add in garlic, Calabrian chilis, and smoked paprika, and cook, stirring often to prevent burning, until the garlic is fragrant.
12-14 cloves garlic, 1-2 tablespoons Calabrian chilis, ½ teaspoon smoked paprika
Deglaze the pan with red wine and stir, simmer for 3-4 minutes. Then add in beef stock, balsamic vinegar, Worcestershire sauce, Dijon mustard, and crushed tomatoes with more salt and some black pepper.
1 cup dry red wine, 2 cups beef stock, 14.5 ounces crushed tomatoes, ¼ cup Balsamic vinegar, 1 tablespoon Dijon mustard, 1 tablespoon Worcestershire, black pepper to taste
Add in bay leaves, an herb bundle, and optional parmesan rind and give the mixture a stir.
herb bundle, 2-3 bay leaves, parmesan rind
Cover, and simmer for about 3 hours, stirring every 30 minutes to prevent sticking on the bottom.
When the beef is fork tender and the bones can easily be removed, take the rind, the bay leaves, and the herb bundle out of Dutch oven and discard.
Remove the short ribs, and remove the bones.
Shred the beef with two forks, and return it to the pot to reheat through. Adjust seasonings.