01 -
Season the short ribs evenly with kosher salt and freshly cracked black pepper. Dredge each piece thoroughly in 2 cups of all-purpose flour, shaking off any excess.
02 -
Heat vegetable oil in a large rondeau over high heat. Add the floured short ribs and cook until browned on all sides, approximately 6-8 minutes total.
03 -
Add carrots, celery, leeks, and smashed garlic to the browned short ribs. Sauté the vegetables until translucent, then stir in tomato paste and cook for 2-3 minutes, seasoning with salt and pepper.
04 -
Pour in red wine to deglaze the pan, scraping up browned bits. Add beef broth, fresh thyme sprigs, and rosemary to the pot.
05 -
Transfer the contents to an instant pot if using. Seal and cook on high pressure for 45 minutes, then allow a natural pressure release for 15 minutes. If not using an instant pot, transfer to a preheated 350°F oven and braise for 2-3 hours until meat is tender and falling off the bone.
06 -
Skim excess fat from the cooking liquid. Remove the short ribs carefully and set aside.
07 -
Strain the cooking liquid into a clean pot. Combine softened butter with 2 tablespoons flour to create a beurre manie. Whisk beurre manie into the hot strained liquid and bring to a boil, stirring constantly until sauce thickens and coats the back of a spoon. Adjust seasoning as needed.
08 -
Return short ribs to the sauce or plate separately with sauce poured over. Garnish with chopped chives if desired and serve with pommes purée and a fresh salad for a classic accompaniment.