This easy Slow Cooker Oxtail with Guinness and Mustard Gravy is a rich, hearty dish that’s perfect for a cozy dinner. The tender oxtail simmers in a flavorful gravy, making it a truly comforting meal. Serve it with buttery mashed potatoes and spring greens for a delicious and satisfying experience.

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Recipe Ingredients

• 1 tsp plain flour (all-purpose flour)
• 750g (1.65 lbs) oxtail, cut into chunks
• 2 brown onions, chopped
• 2 large carrots, chopped
• 2 parsnips, chopped
• 2 tsp English mustard
• 250ml (1 cup) vegetable stock
• 575ml ( 2 1/3 cups) Guinness
• Sea salt and freshly ground black pepper

To Serve

• Buttery mashed potatoes
• Spring greens

How To Make Slow Cooker Oxtail With A Guinness & Mustard Gravy

1. Prepare the oxtail: Season the flour with salt and pepper, then toss it with the oxtail chunks until fully coated.
2. Brown the oxtail: Heat a pan over high heat and sear the oxtail for around 5 minutes until browned all over. Transfer the oxtail to your slow cooker.
3. Add the vegetables and liquids: Add the chopped onions, carrots, and parsnips to the slow cooker. Stir the English mustard into the vegetable stock, then pour this mixture into the slow cooker along with the Guinness.
4. Cook the oxtail: Set the slow cooker to low and cook for 7–8 hours, stirring occasionally to ensure even cooking.
5. Serve: Spoon the tender oxtail and rich gravy over buttery mashed potatoes and serve with spring greens for a complete meal.

Recipe Tips

• Coat the oxtail evenly: Make sure the oxtail chunks are fully coated with the flour to help thicken the gravy and lock in flavor while cooking.
• Sear the oxtail well: Brown the oxtail on all sides before adding it to the slow cooker. This step adds a deep, rich flavor to the dish.
• Stir the mustard into the stock: Mixing the mustard into the stock before adding it to the slow cooker ensures it blends evenly into the gravy for a smooth taste.
• Use a full-bodied Guinness: The rich flavor of Guinness adds depth to the gravy. Choose a good-quality stout for the best result.
• Don’t skip stirring occasionally: Stir the ingredients every couple of hours during cooking to ensure the flavors combine and prevent the vegetables from sticking to the bottom.

Recipe FAQs and Variations

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