1. Preheat the oven to 300°F. Rinse the oxtail cuts thoroughly and place them in a shallow casserole dish. Season generously with salt, pepper, and crushed garlic, and cover the surface with lots of sliced onions.
2. Pour in water till it reaches halfway through the oxtails, and cover the dish with foil. Make sure the foil doesn’t touch the meat at the edges.
3. Toss the dish in the oven and bake for about two hours until it falls off the bone. If it’s not ready, leave it for another thirty minutes and check. Make sure to add a bit more water if it’s evaporated.
4. Once the oxtails are ready, set down and leave to rest for three minutes. Then, separate the pan juices from the meat or serve them together.

Also, check out this fantastic oven-cooked oxtail video recipe for fresh ideas.