Trim the fat from the oxtails, then toss the oxtails into a large mixing bowl.
Drizzle the olive oil all over the oxtails.
Sprinkle the seasoning salt, herbs de provence, black pepper, and red pepper flakes.
Make sure the oxtails are well coated with the oil, and seasonings.
Next grab a large deep pot or skillet, and place it over medium high heat.
Start adding the oxtails into the hot pot / skillet, and brown them.
Once the oxtails are browned, toss in the onions, and cook for an additional 5 minutes, OR until the onions are golden.
Next toss in the cloves of garlic, bay leaves, and fresh thyme.
Drizzle the browning sauce over the oxtails.
Pour in 6 cups of beef broth, stir the ingredients, and reduce the heat to low medium.
Cover the pot / skillet, and let the oxtails cook for 3 1/2 hours. Be sure to check occasionally to add more broth, and stir!
During the last 30 minutes of cooking, add in the chopped carrots. Give everything a nice stir, the cover.
Serve and enjoy over rice or mashed potatoes.