Can I shorten the cooking time?

You can, but the 46-hour method produces a much deeper flavor and thicker gel when chilled. I wouldn't rush it.

Is homemade beef stock really keto?

Absolutely—it's nearly zero carbs and packed with collagen, which supports joint health. Just discard the fat layer as instructed.

Can I use a slow cooker instead?

Yes, a slow cooker on low works well for the first 24 hours, but you'll need to transfer to a pot for the final reduction.

Keto Beef Stock Recipe: Slow-Simmered 46 Hours for Deep Flavor

Name: Slow and Easy Beef Stock
Prep time: 10 min
Cook time: 2760 min
Total time: 2770 min
Yield: 8
Cuisine: Keto
Ingredients: pounds beef soup bones, cut into pieces; water to cover

Ingredients

pounds beef soup bones, cut into pieces
water to cover

Instructions

Step 1

Start by placing the beef bones into a large stockpot and covering them completely with cold water. Bring the pot to a rolling boil, and skim off any foam that forms during the first 10 minutes. Reduce the heat to maintain a very gentle boil, then let it cook for 24 hours, checking occasionally to add more water and keep the bones submerged. I find that this long, slow extraction draws out every bit of flavor and collagen. After the day-long boil, remove and discard the bones—they’ve done their job. Now, keep the liquid at a low simmer for another 21 to 22 hours. This step reduces it slightly and deepens the beefy taste. When the time’s up, strain the stock through a fine-mesh colander to remove any particles, then return it to the stockpot. Bring it to a boil and cook until the liquid reduces to about 2 quarts. Pour the hot stock into heat-safe containers and freeze until solid. Once frozen, you’ll see a top layer of fat—scrape that off and discard it. The remaining jellied stock is your pure, keto-friendly base, ready to thaw and use in soups, sauces, or just warmed as a nourishing drink.

Chef's Tip

I always roast the bones at 400°F for 20 minutes before simmering—it adds an incredible depth of flavor that makes the stock taste like it came from a restaurant kitchen.

Storage Tips

Keep frozen for up to 6 months. To use, thaw overnight in the fridge and reheat gently on the stove. Avoid microwaving to preserve the silky texture.

Variation Tips

Add a splash of apple cider vinegar during simmering to help extract more minerals from the bones. For a richer stock, throw in some carrot peels and celery ends during the last hour, then strain out.

Slow and Easy Beef Stock