Heat two tablespoons of oil in a cast iron skillet or Dutch oven. While the oil is heating up, liberally salt and pepper the short ribs. Once the oil is hot, add the short ribs and brown them on all sides.
Add the onion and garlic to the skillet and scrape up all the browned bits from the bottom. Add one cup of dry red wine and two cups of beef broth to the skillet. Finally, add 3 sprigs of fresh thyme and 3 sprigs of fresh rosemary to the pot.
Place covered in preheated oven and bake for 3 hours or until beef is tender and starting to fall off the bone.