Slow-Braised Oxtail with Mashed Potato

Slow-braised oxtail is a classic cold-weather braise, prized for its deep beef flavour and gelatin-rich texture. The cut needs time rather than fuss: gentle simmering turns the meat tender enough to pull from the bone while the stock, wine, vegetables, tomato purée and herbs become a full-bodied gravy. Served over buttery mashed potato, it is hearty without being complicated, with the mash softening the richness and catching every spoonful of sauce. Careful browning at the start and a final reduction of the cooking liquor give the dish its savoury depth and glossy finish.
Cuisine style British comfort food
Flavor profile Rich • Savoury • Deeply umami
Techniques Browning • Slow braising • Reducing
Key equipment Casserole dish or Dutch oven • Large pot • Potato masher
Cooking style Slow-cooked • Make-ahead friendly • Freezer-friendly
Time commitment Slow-cooked

Why this recipe works

  • Deep, savoury base: Browning the oxtail first builds fond in the pot, which is lifted with red wine and carried through the stock-based braise.
  • Slow braising suits oxtail: A quiet simmer gives the connective tissue time to soften, turning a tough cut into tender meat and a naturally rich gravy.
  • Built for mash: The reduced cooking liquor is glossy and full-bodied, making it ideal for spooning over buttery mashed potato.

Get the most out of this recipe

Timing notes

  • Mostly hands-off cooking: The active work is in browning, softening the vegetables and making the mash; the braise itself needs time rather than constant attention.
  • Forgiving once tender: When the oxtail is falling from the bone, it can sit gently in the gravy while the potatoes are finished.

Common mistakes

  • Do not crowd the oxtail: Brown the pieces in batches so they colour properly rather than steaming in the pot.
  • Keep the simmer low: A rolling boil can make the meat tighten and the gravy muddy; aim for a quiet, steady simmer.
  • Reduce the gravy with care: Simmer the strained cooking liquor until glossy, then loosen with a little stock if it becomes too concentrated.

Ingredient swaps

  • Without red wine: Use extra beef stock in place of the wine, then reduce it well so the gravy still has depth.
  • Gluten-free thickening: Replace the flour with cornflour mixed into a little cold stock before adding it to the gravy.

Make-ahead tips

  • Good made ahead: The oxtail and gravy reheat well, and the flavour often settles further after chilling.
  • Keep the mash separate: Store the mashed potato apart from the oxtail and gravy so each reheats to the right texture.
  • Reheat gently: Warm the oxtail in a covered pot until piping hot, adding a little stock if the gravy has thickened too much.

Equipment you'll need

Ingredients

Braised oxtail and gravy

Mashed potato

Instructions
Print
  1. Pat the oxtail dry, then season with the salt and pepper. Toss with the flour until lightly coated. Set a large casserole dish over medium-high heat.
  2. Melt the butter in the casserole dish, then brown the oxtail in batches until deeply coloured all over. Transfer the browned pieces to a plate as you go. Keep the heat steady so the fond develops without burning.
  3. Lower the heat to medium and add the onion, carrot and celery to the pot. Cook, stirring, for 8 to 10 minutes until softened and lightly golden. Stir in the tomato purée and cook for 1 minute.
  4. Pour in the red wine and scrape up the browned bits from the base of the pot. Simmer for 5 to 7 minutes until reduced by about half. Return the oxtail to the pot.
  5. Add the beef stock, bay leaves and thyme, then bring to a gentle simmer. Cover with a lid and cook on the lowest heat for 2 hours, turning the oxtail once or twice, until the meat is very tender and starting to fall from the bone. Keep it at a quiet simmer rather than a rolling boil.
  6. Meanwhile, peel the potatoes and cut into even chunks. Cook in a large pot of salted water for 15 to 20 minutes until completely tender. Drain well and return to the hot pot for 1 minute to steam-dry.
  7. Mash the potatoes until smooth, then beat in the butter, salt and pepper. Keep warm over very low heat, stirring occasionally, or cover with a lid off the heat. Taste and adjust seasoning.
  8. Lift the oxtail out of the braising liquid and cover to keep warm. Skim off excess fat from the surface, then simmer the cooking liquor uncovered for 10 to 15 minutes until glossy and lightly thickened. Discard the bay leaves and thyme stems, then return the oxtail to the gravy to warm through.
  9. Serve the oxtail and gravy over the mashed potato. Spoon over plenty of the reduced cooking liquor. Finish with a final grind of black pepper if you like.

Made this recipe? Rate it — a comment is optional.

Recipe notes

Tips

  • For the best flavour, brown the oxtail properly: you want a deep mahogany colour, not just a light sear.
  • If the gravy reduces too far, loosen it with a splash of beef stock and simmer briefly to bring it back together.
  • If serving vulnerable groups, ensure the oxtail is cooked until piping hot throughout and the gravy is simmered well after adding the wine.

Substitutions

  • Replace red wine with extra beef stock for an alcohol-free braise.
  • Replace plain flour with cornflour to thicken the gravy, whisking it into a little cold beef stock first.

Storage

  • Refrigerate up to 3 days
  • Cool the oxtail and gravy quickly, then refrigerate in a sealed container. Reheat gently in a covered pot until piping hot, adding a splash of beef stock if needed; mash keeps best refrigerated separately and reheated with a knob of butter.

Ratings & reviews

Liked this recipe? Share your feedback to support our cooking community.

Tried this recipe?

Choose 1–5 stars. A comment is optional.

If you leave a comment, use 10–500 characters.

Stay inspired

Discover new recipes, seasonal favourites and cooking inspiration every day. Follow JustRecipes on Pinterest and Spillt.

Recipe overview

  • Servings: 4 servings
  • Total time: 3h 30min (45min active)
  • Difficulty: Medium
  • Cuisine: British
  • Allergens:
    Gluten Milk Wheat
Freezer friendly

Plan your meals and get a complete grocery list automatically.

Add to meal planner

Got ingredients left?

Find recipes using ingredients from this recipe or what you already have at home.

Find recipes with these ingredients →

Browse alphabetically

Looking for a specific recipe? Choose a letter below to jump directly to recipes starting with that letter or number.

Enjoy cooking with JustRecipes?

Add JustRecipes as one of your preferred Google sources to discover our recipes more easily across Google Search.

Add JustRecipes to Google

Every recipe on JustRecipes follows the same structured editorial process. Learn how recipes are created, validated, translated, illustrated, and continuously improved across the platform. How we create recipes.