Spanish Braised Oxtail with Red Wine Couscous

Name: Spanish Braised Oxtail with Red Wine Couscous
Prep time: 25 min
Cook time: 3 h 30 min
Total time: 3 h 55 min
Yield: 4 servings
Cuisine: Spanish
Ingredients: 3½ lbs (1590 g) oxtail, cut into 2-inch pieces by the butcher, patted completely dry; 1½ teaspoons (9 g) kosher salt; ¾ teaspoon (1½ g) freshly ground black pepper; 2 tablespoons (30 ml) extra-virgin olive oil; 1 medium (180 g) yellow onion, halved, peeled; 3 medium (340 g) carrots, peeled, cut into 2-inch pieces; 6 cloves (18 g) garlic, minced; 1½ cups (360 ml) dry red wine (Spanish Rioja preferred); 1 can (14.5 oz) (411 g) crushed tomatoes (canned); 1 cup (240 ml) beef broth; 2 whole bay leaves; 3 sprigs (3 g) fresh thyme sprigs; 1 teaspoon (2½ g) smoked paprika; ¾ cup (120 g) green olives (pitted); 2 cups (330 g) pearl couscous; 3 tablespoons (43 g) unsalted butter; ¾ teaspoon (4½ g) kosher salt; ½ cup (12 g) fresh flat-leaf parsley, roughly chopped, for garnish; ½ whole (50 g) lemon, zested, for garnish (optional)

From the MyKitchenBank Kitchen

Tender, fall-apart oxtail braised in red wine with tomatoes, olives, and Spanish spices, served over fluffy red wine-soaked couscous. The slow cooker method makes this restaurant-quality dish simple—just sear the meat, combine everything, and let it cook low and slow for hours until the oxtail is so tender it slides off the bone. Perfect for a special dinner or Sunday supper.

Prep: 25 min
Cook: 3 hr 30 min
Wait: 30 min
Total: 4 hr 25 min
Makes: 4 servings (1½ lbs braised oxtail and 1 cup couscous per serving)

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Ingredients

4 servings

For the braised oxtail
3½ lbs (1590 g) oxtail, cut into 2-inch pieces by the butcher, patted completely dry
1½ teaspoons (9 g) kosher salt
¾ teaspoon (1.5 g) freshly ground black pepper
2 tablespoons (30 ml) extra-virgin olive oil
1 medium (180 g) yellow onion, halved, peeled
3 medium (340 g) carrots, peeled, cut into 2-inch pieces
6 cloves (18 g) garlic, minced
1½ cups (360 ml) dry red wine (Spanish Rioja preferred)
1 can (14.5 oz) (411 g) crushed tomatoes (canned)
1 cup (240 ml) beef broth
2 whole bay leaves
3 sprigs (3 g) fresh thyme sprigs
1 teaspoon (2.5 g) smoked paprika
¾ cup (120 g) green olives (pitted)
For the red wine couscous
2 cups (330 g) pearl couscous
3 tablespoons (43 g) unsalted butter
¾ teaspoon (4.5 g) kosher salt
½ cup (12 g) fresh flat-leaf parsley, roughly chopped, for garnish
½ whole (50 g) lemon, zested, for garnish (optional)

Equipment (8)

Large heavy-bottomed skillet (12-inch)
4- to 5-quart slow cooker
Paper towels
Tongs
Large spoon or ladle
Fine-mesh strainer or sieve
Medium saucepan with lid
Fork for fluffing

Steps

Before you start

Pat oxtail pieces completely dry with paper towels before cooking—this ensures good browning.
Have your slow cooker on hand and set to low heat once you begin.
Read through the timing: the braise takes 3.5 hours, but the final rest and couscous preparation add another 30 minutes.

1
Sear the oxtail
- Heat the olive oil in a large heavy-bottomed skillet over medium-high heat for 1 minute until shimmering.
- Season the oxtail pieces on all sides with 1.5 teaspoons kosher salt and ¾ teaspoon black pepper.
- Working in two batches to avoid crowding, sear the oxtail for 3–4 minutes per side until deeply browned.
- Transfer the seared pieces to your slow cooker.
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Ready when: Oxtail pieces are deeply golden brown on all sides, not pale or gray
Tip: Do not skip the searing step—it builds flavor. Let each batch sit undisturbed for the first 2 minutes so a crust forms.
2
Sauté aromatics
- In the same skillet over medium heat, add the halved onion and carrot pieces.
- Sauté for 4 minutes, stirring occasionally, until they begin to soften and caramelize at the edges.
- Add the minced garlic and smoked paprika, stir constantly for 1 minute until fragrant.
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Ready when: Garlic is fragrant and paprika has darkened slightly; onion and carrot are soft at the edges
Tip: Lower the heat if the paprika begins to scorch—burnt paprika tastes bitter.
3
Deglaze and build the braising liquid
- Pour the red wine into the skillet, using a wooden spoon to scrape up any browned bits stuck to the bottom (this is flavor).
- Let it simmer for 2 minutes.
- Pour the wine mixture into the slow cooker with the oxtail.
- Add the crushed tomatoes, beef broth, bay leaves, and thyme sprigs.
- Stir well to combine.
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Ready when: All ingredients are incorporated and liquid covers the oxtail by about ¾ inch
Tip: Make sure the bay leaves and thyme are fully submerged so they flavor the entire braise evenly.
4
Braise low and slow
- Cover the slow cooker and set it to low heat.
- Cook for 3½ hours.
- The oxtail is done when the meat is so tender it pulls away from the bone with minimal pressure and the braising liquid has reduced slightly and darkened in color.
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Ready when: Meat slides off the bone with a gentle tug; braising liquid is glossy and reduced by about 1 inch
Tip: Resist lifting the lid frequently—each opening extends cooking time by 5–10 minutes. Slow cookers are forgiving; if it goes 15 minutes over, the meat will only be more tender.
5
Add olives and rest
- Stir the green olives into the slow cooker.
- Cover and cook on low for an additional 20 minutes to warm them through and meld the flavors.
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Ready when: Olives are heated through, no cold spots when tasted
Tip: Don't add olives too early—prolonged cooking can make them mushy and overly soft.
6
Strain the braising liquid
- Using a fine-mesh strainer or sieve, carefully pour the contents of the slow cooker into a large bowl or pot, separating the braising liquid from the meat and solids.
- Set the oxtail and olives aside, covered to keep warm.
- Discard the bay leaves and thyme.
- Measure out 3½ cups of the braising liquid for the couscous; reserve any extra for serving.
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Ready when: Liquid is clear of meat solids and slightly cooled so it won't splatter when the couscous is added
Tip: Leave the oxtail undisturbed for 5 minutes after braising so the meat stays on the bone. The liquid should be glossy and rich—if it looks thin and pale, return it to the slow cooker and cook an additional 15 minutes to concentrate the flavors.
7
Toast the couscous
- In a medium saucepan, melt 3 tablespoons butter over medium heat.
- Add the pearl couscous and stir constantly for 2–3 minutes until it is lightly golden and fragrant.
- This toasting step adds nutty depth.
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Ready when: Couscous is lightly golden and releases a pleasant toasted aroma
Tip: Stir constantly to prevent burning. If the butter browns too quickly, lower the heat slightly.
8
Add braising liquid to couscous
- Carefully pour the hot braising liquid (3½ cups, measured from the strained slow cooker) into the saucepan with the toasted couscous.
- The mixture will bubble and steam.
- Stir once, then add ¾ teaspoon kosher salt.
- Cover the pan with a lid and remove it from heat.
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Ready when: Couscous grains are plump and tender; liquid is fully absorbed
Tip: Do not stir the couscous while it rests—this keeps it light and fluffy. If you need it to finish more quickly, you can leave the lid off and let steam escape faster, but covered is traditional.
9
Fluff and plate
- Fluff the couscous gently with a fork, breaking up any clumps.
- Divide the couscous among four shallow bowls.
- Top each bowl with a generous portion of oxtail and braising liquid (the meat and olives should be warm).
- Garnish with chopped fresh parsley and a pinch of lemon zest if using.
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Ready when: Couscous is light and fluffy with no visible lumps; oxtail is plated while still hot
Tip: Serve immediately while the oxtail is hot and the couscous is freshly fluffed. The lemon zest adds bright acidity to cut through the richness of the braised meat.

Good to know

Tips

Oxtail is fattier than other beef cuts, so a layer of fat will solidify on top of the chilled braising liquid. You can remove it before reheating for a lighter dish, or leave it for extra richness—both are delicious.
Ask your butcher to cut the oxtail into 2-inch pieces. This saves time and ensures even cooking.
The slow cooker method is ideal for oxtail because the low, slow heat allows collagen in the meat and bones to transform into gelatin, creating a silky, luxurious braising liquid.
Pearl couscous is larger and chewier than regular couscous. If you use regular couscous, reduce the amount to 1½ cups and the braising liquid to 2½ cups, as regular couscous absorbs more liquid.

Make ahead

The oxtail braise can be cooked up to 2 days ahead, cooled completely, and refrigerated in an airtight container. The braising liquid and meat will gel slightly as it cools (this is normal collagen setting). Reheat gently on low in the slow cooker for 45 minutes, or in a covered pot on the stovetop over low heat for 30 minutes, stirring occasionally. Prepare the couscous fresh just before serving for best texture.

Storage & reheating

Refrigerate the braised oxtail (meat, olives, and liquid together) in an airtight container for up to 3 days. The couscous does not store well; make it fresh. To reheat, warm the oxtail and braising liquid gently in a covered pot on low heat for 20–25 minutes, stirring once halfway through. Do not microwave, as it can toughen the meat. Freeze the braised oxtail (without couscous) in a freezer-safe container or heavy-duty freezer bag for up to 3 months. Thaw in the refrigerator overnight, then reheat as directed above.

Substitutions

dry red wine (Spanish Rioja preferred) → dry red wine (Garnacha or Tempranillo) or 1½ cups beef broth plus 2 tablespoons red wine vinegar. If you prefer no alcohol, use beef broth and vinegar for acidity; the flavor will be milder but still delicious. Avoid very tannic wines (Cabernet Sauvignon) as they can overpower the dish.
pearl couscous → Israeli couscous or pearl barley (use same amount, same cooking time). Israeli couscous and pearl barley will add a slightly chewier texture but work beautifully in place of pearl couscous.
green olives (pitted) → ½ cup kalamata olives plus ¼ cup roasted red peppers (jarred, chopped). This creates a more Mediterranean flavor profile with a touch of sweetness and smokiness.
smoked paprika → 1 teaspoon regular paprika plus ¼ teaspoon cayenne pepper. This mixture provides Spanish flavor with a slight spice; adjust cayenne to taste if you prefer less heat.