Spanish Beef and Rioja Broth

Name: Spanish Beef and Rioja Broth
Prep time: 15 min
Cook time: 8 h
Total time: 8 h 15 min
Yield: 8 servings
Cuisine: Spanish
Ingredients: 3 lbs (1400 g) Beef marrow bones or knuckle bones, thawed if frozen, rinsed and patted dry; 2 large (400 g) Large yellow onions, halved lengthwise, skin left on; 3 large (400 g) Large carrots, peeled and cut into 2-inch pieces; 1 head (50 g) Fresh garlic head, halved crosswise (through the center); 1½ cups (360 ml) Dry Rioja wine; 10 cups (2400 ml) Cold filtered water; 2 leaves (1 g) Dried bay leaves; 4 sprigs (6 g) Fresh thyme sprigs; 1 teaspoon (5 g) Black peppercorns, whole; 1 teaspoon (6 g) Kosher salt

From the MyKitchenBank Kitchen

A rich, deeply flavored beef broth made with marrow bones, Spanish Rioja wine, and aromatic vegetables cooked low and slow in a slow cooker. The wine adds subtle complexity while hours of gentle cooking extract gelatin and collagen from the bones, creating a silky, flavorful broth perfect for Spanish dishes or as a foundation for soups and sauces. Minimal hands-on work with maximum flavor payoff.

Prep: 15 min
Cook: 8 hr
Wait: 50 min
Total: 9 hr 5 min
Makes: About 2.5 liters (10 cups) beef broth

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Steps

Before you start

Thaw any frozen bones in the refrigerator overnight before starting
Have a fine-mesh strainer and a large heatproof pot or container ready for straining
Use a 6-quart or larger slow cooker with a tight-fitting lid to minimize evaporation

1
Prepare ingredients
- If the beef bones are frozen, thaw them in the refrigerator overnight.
- Under cold running water, rinse the bones thoroughly to remove any surface debris, then pat them completely dry with paper towels.
- Halve the onions lengthwise, keeping the papery skin intact (the skin contributes color and subtle mineral depth to the broth).
- Peel the carrots and cut them into rough 2-inch pieces.
- Using a sharp knife, cut the garlic head in half horizontally across its center, so you expose all the cloves.
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Ready when: All ingredients are cleaned, peeled, and cut as specified
Tip: Leave the onion skins on—they contribute color and subtle tannin-like depth to the finished broth
2
Layer ingredients in slow cooker
- Place the 3 lbs of beef bones in the bottom of a 6-quart slow cooker.
- Arrange the carrot pieces, onion halves, and garlic halves around the bones, distributing them evenly.
- Scatter the bay leaves, fresh thyme sprigs, and whole black peppercorns over the vegetables and bones.
- Pour in 1.5 cups of Rioja wine, letting it settle into the pot.
- Add 10 cups of cold water, ensuring that the bones and vegetables are submerged by about 1 inch of liquid.
- Sprinkle 1 teaspoon of kosher salt over the entire mixture.
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Ready when: All ingredients are evenly distributed in the slow cooker and liquid level reaches 1 inch above solids
Tip: Using cold water maximizes gelatin and collagen extraction from the bones during the long, gentle cooking process
3
Cook on low heat
- Cover the slow cooker with its lid.
- Set the heat to LOW and cook for 8 hours.
- (Alternatively, you may cook on HIGH for 4 to 5 hours if time is limited, though the low setting yields deeper, more developed flavor.) Do not lift the lid during cooking—each opening releases heat and effectively adds 15 minutes to the total cooking time.
- The broth is done when it has turned a deep amber color and the bones have begun to separate slightly from the marrow.
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Ready when: Broth is deep amber in color; bones have separated slightly from the marrow
Tip: Resist the urge to open the lid—each lift releases valuable heat and extends the cooking process
4
Remove bones and vegetables
- Once the cooking time is complete, use tongs or a slotted spoon to carefully lift out the large bones and vegetable pieces directly from the slow cooker.
- Discard all solids—bones, vegetables, herbs, and bay leaves.
- Work carefully to avoid splashing the hot broth.
- This step should take about 10 minutes.
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Ready when: All large solids have been removed from the slow cooker
Tip: Save the bones and vegetable solids in a separate bowl until you finish straining, in case you need to retrieve a bay leaf or other item
5
Strain through fine sieve
- Place a fine-mesh strainer over a large heatproof pot or container.
- Slowly and carefully pour the entire remaining contents of the slow cooker into the strainer, allowing the liquid to drip through into the pot below.
- Do not press the solids or force the liquid—allow gravity to do the work, which may take 20 to 30 minutes.
- Once all liquid has drained through, discard the fine solids (peppercorns, herb fragments, and any vegetables that passed through).
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Ready when: All liquid has passed through the strainer and no more broth drips after 2 minutes of waiting
Tip: For crystal-clear, consommé-quality broth, line your strainer with damp cheesecloth before pouring—this yields a professional-grade result but requires 45 to 60 minutes of patient straining
6
Cool and season to taste
- Allow the strained broth to cool to room temperature, about 30 minutes.
- (Do not taste it while it is extremely hot.) Once cooled, taste a small spoonful and evaluate the flavor.
- The broth should taste distinctly savory with a rich beef backbone and subtle wine complexity from the Rioja.
- Add kosher salt 1/4 teaspoon at a time, stirring and tasting, until the flavor feels balanced and clean.
- Avoid over-salting at this stage—you can always add more salt when using the broth in future recipes, but you cannot remove it.
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Ready when: Broth is at room temperature and seasoned to your preference
Tip: Err on the side of under-seasoning now—the flavor will concentrate if you reduce the broth later in a saucepan

Good to know

Tips

For the clearest, most elegant broth (suitable as a light consommé), line your strainer with damp cheesecloth and strain very slowly—allow 45 to 60 minutes for the liquid to drip through undisturbed; this extra time yields a crystal-clear result
Do not discard the fat layer that congeals on top of refrigerated broth—it is rich and flavorful. Use it for cooking vegetables or meat, or leave it in place as a natural seal to protect the broth underneath
If you have access to veal bones or a mix of beef and veal bones (in a 3:1 ratio), use them—they will produce an exceptionally rich, silky broth with refined flavor
Taste the broth before adding it to other recipes—if it tastes under-salted at this stage, it is perfect for reducing in a saucepan for sauces, but if you use it directly in soups, add salt then for better control

Make ahead

Yes, this is an ideal make-ahead recipe. Prepare it up to 3 days in advance and refrigerate in an airtight container with the fat layer intact (the fat acts as a natural seal and preservative). The broth also freezes beautifully for up to 6 months in airtight containers or ice cube trays.

Storage & reheating

Refrigerator: Store in a clean, airtight container for 4 to 5 days. A layer of fat will solidify on top—leave it in place, as it protects the broth beneath and adds deep flavor. Freezer: Transfer to airtight freezer containers or ice cube trays and freeze for up to 6 months. To reheat: Thaw overnight in the refrigerator if frozen. Warm gently over medium heat on the stovetop, stirring occasionally, until it reaches a gentle simmer (about 10 to 15 minutes). Do not boil aggressively, as this can diminish delicate flavors.

Substitutions

Dry Rioja wine → Spanish Tempranillo, French Burgundy, or Châteauneuf-du-Pape (any full-bodied dry red wine). Rioja is traditional to Spanish cooking; any high-quality dry red wine will add complexity. Avoid sweet or oaked wines—they can overpower the broth
Fresh thyme sprigs → 1 teaspoon dried oregano or 1 teaspoon dried marjoram. Fresh thyme is preferred for its bright, clean flavor, but dried herbs work well if you reduce the quantity. Oregano is closer in spirit to Spanish cooking than marjoram
Dried bay leaves → 1 teaspoon dried marjoram or simply omit. Bay leaves add a subtle herbal note; the broth is perfectly fine without them if you cannot find fresh bay leaves
Beef marrow bones or knuckle bones → Beef knuckle bones, beef shin with meat, or a mix of beef and veal bones. Marrow bones and knuckle bones are ideal; veal bones produce an especially silky, refined broth if you can source them. Any beef bones will produce good results