Roman oxtail braised for hours with tomatoes, celery, and cocoa for velvety richness. This high protein mediterranean family dish is a carnivore classic with incredible depth of flavor.
Pat oxtail pieces dry and season with salt and pepper. In a heavy-bottomed Dutch oven, heat olive oil over medium-high heat until shimmering. Sear oxtail in batches until well browned on all sides, about 8–10 minutes per batch.
Lower heat to medium. Add chopped onions, carrots, celery, and sauté gently, stirring frequently, until vegetables are softened and the onions are translucent—about 10 minutes.
Add minced garlic and bay leaves; sauté for 1 more minute, ensuring the garlic does not burn. Deglaze the pot with white wine, scraping up browned bits from the bottom; let simmer 2–3 minutes until slightly reduced.
Stir in diced tomatoes and water. Bring to a low boil, then reduce heat to low, cover, and simmer gently for 2.5–3 hours, turning the oxtail pieces occasionally and keeping the liquid at just a gentle bubble.
Stir in cocoa powder during the last 20 minutes of braising, mixing well. If the sauce is too thin, remove lid and simmer uncovered for the final 10–15 minutes to thicken. Remove bay leaves; adjust seasoning and serve hot.