Ingredients:
- 4 lbs beef or chicken bones (preferably with some marrow)
- 2 tablespoons olive oil
- 1 large onion, roughly chopped
- 2 medium carrots, roughly chopped
- 2 celery stalks, roughly chopped
- 4 cloves garlic, smashed
- 2 bay leaves
- 1 teaspoon whole black peppercorns
- 10-12 cups cold water
- Optional: Fresh herbs (e.g., thyme, parsley stems)
Instructions:
- Preheat the oven to 400°F (200°C).
- Place the bones in the roasting pan; drizzle with olive oil and toss to coat. Roast for 30-40 minutes until browned.
- In a stockpot or slow cooker, add the roasted bones. Sauté the onion, carrots, celery, and garlic for 5 minutes until fragrant.
- Add the roasted bones, bay leaves, peppercorns, and optional herbs to the pot. Pour in cold water to cover the bones.
- Bring to a boil, then reduce heat to low. Simmer uncovered or partially covered for 4-24 hours, adding water as needed.
- Use tongs to remove the bones and solids from the broth. Strain the liquid through a fine-mesh strainer or cheesecloth into a clean container.
- Allow to cool completely before refrigerating or freezing. Store in airtight containers for up to 5 days in the fridge or 3 months in the freezer.