Slow Cooker Beef Bone Broth


Meaty oxtail and marrow bones are perfect for bone broth, these will produce a jelly-like bone broth that is dark in color and nutritious. Roasting the bones adds a beautiful color and a richer flavor. I tend to go light on the salt so taste and adjust accordingly.

Prep Time:
15 mins
Cook Time:
1 day 30 mins
Total Time:
1 day 45 mins
4 cups


  • aluminum foil

  • cooking spray

  • 1 ½ pounds beef oxtails

  • 2 pounds beef marrow bones

  • 3 carrots, washed and sliced

  • 3 stalks celery, washed and thickly sliced

  • 1 large unpeeled onion, quartered

  • 8 cloves garlic, halved

  • 1 leek, white and tender green parts only, halved lengthwise and sliced

  • 2 tablespoons apple cider vinegar

  • ½ teaspoon salt

  • ½ teaspoon black peppercorns

  • 4 cups water, or as needed

  • 2 bay leaves

  • cheese cloth


  1. Preheat the oven to 375 degrees F (190 degrees C). Line a rimmed baking sheet with foil and spray lightly with cooking spray.

  2. Spread out oxtail, bones, carrots, celery, onion, and garlic on the baking sheet.

  3. Bake in the preheated oven until browned, about 30 minutes. Scrape contents of the baking sheet into a slow cooker. Add leek, apple cider vinegar, salt, and peppercorns. Add enough water to cover the contents but not more than 2 inches below the rim.

  4. Cook on Low for 22 hours. Add bay leaves and cook for another 2 hours.

  5. Strain broth through a fine mesh strainer that is lined with a double layer of cheese cloth. Refrigerate. Skim off the fat before using or freezing.

Nutrition Facts (per serving)

481 Calories
23g Fat
15g Carbs
54g Protein
Nutrition Facts
Servings Per Recipe 4
Calories 481
% Daily Value *
Total Fat 23g 30%
Saturated Fat 10g 48%
Cholesterol 187mg 62%
Sodium 691mg 30%
Total Carbohydrate 15g 5%
Dietary Fiber 3g 11%
Total Sugars 6g
Protein 54g
Vitamin C 12mg 58%
Calcium 96mg 7%
Iron 7mg 41%
Potassium 670mg 14%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.