Prep Time: 1 hour 30 minutes
Cook Time: 9–10 hours
Rest Time: 40 minutes
Total Time: Approximately 11–12 hours
Yield: 10–12 servings
Cuisine: Carnivore / Zero-Carb
Difficulty: Advanced

A Deeply Flavorful Zero-Carb Feast

For those following a zero-carb or carnivore lifestyle, few meals are as satisfying as a slow-roasted beef dinner that celebrates the natural richness of high-quality meat and animal fats. This Zero-Carb Slow-Roasted Butter Beef is designed to maximize tenderness, flavor, and texture using simple cooking techniques rather than complicated ingredients. Slow cooking transforms heavily marbled beef into fork-tender meat, while roasted marrow, rendered beef fat, and a silky egg yolk butter sauce create layers of richness without relying on carbohydrates or plant-based thickeners.

The recipe combines several classic techniques. Beef is slowly roasted at a gentle temperature to allow collagen to dissolve into gelatin, creating exceptionally juicy meat. Marrow bones roast alongside the beef, enriching the cooking juices while providing buttery marrow that can be served separately or blended into the sauce. Crispy beef cracklings add a pleasant crunch, and quickly seared liver contributes a bold, savory flavor that pairs naturally with the richness of the roast.

Although the cooking time is long, the preparation itself is straightforward. Most of the cooking happens in the oven, requiring only occasional basting. The reward is a deeply flavored centerpiece suitable for holiday meals, family gatherings, or special occasions when you want an impressive zero-carb main course.

Why You’ll Love This Recipe

• 1. Made with only animal-based ingredients.
  2. Naturally contains virtually no carbohydrates (if optional vinegar and pepper are omitted).
  3. Slow roasting creates exceptionally tender beef.
  4. Rich in protein, collagen, and healthy animal fats.
  5. Excellent for meal preparation.
  6. Uses marrow bones for additional richness.
  7. Crispy beef cracklings provide contrasting texture.
  8. Leftovers become even more flavorful after resting overnight.

Ingredients

Main Beef

• 5 kilograms well-marbled beef chuck roast
• 2 kilograms beef short ribs
• 1 kilogram marrow bones

Rendered Fat

Additional Ingredients

• 500 grams unsalted butter
• 500 grams beef liver
• 12 large egg yolks
• 3 tablespoons sea salt
• 2 tablespoons smoked salt
• 2 liters water
• Freshly ground black pepper (optional)

Instructions

Equipment Needed

• 1 large Dutch oven or heavy roasting pan with lid
• 1 cast-iron skillet
• 1 heavy stockpot
• Fine mesh strainer
• Whisk
• Mixing bowls
• Sharp carving knife
• Meat thermometer (optional)

• 1 kilogram beef fat trimmings or suet
• 250 grams beef tallow

1. Prepare the Meat

Remove the chuck roast and short ribs from the refrigerator about one hour before cooking. Allowing the meat to warm slightly encourages more even cooking.

Pat every surface completely dry with paper towels. Moisture prevents proper browning, so drying the meat thoroughly is an important first step.

Season generously with sea salt.

2. Prepare the Marrow Bones

Rinse the marrow bones under cold water.

If desired, soak them in lightly salted cold water for 30 minutes before drying thoroughly.

Brush lightly with melted beef tallow.

Set aside.

3. Render the Beef Fat

Cut the beef fat into small cubes.

Place the cubes into a heavy pot over very low heat.

Allow the fat to melt slowly over 1½ to 2 hours, stirring occasionally.

As the fat renders, small browned pieces will remain.

Strain the clear rendered tallow through a fine-mesh sieve.

Reserve both the liquid tallow and the crispy cracklings separately.

4. Brown the Beef

Preheat the oven to 120°C (250°F).

Heat several tablespoons of rendered tallow in a heavy roasting vessel.

Brown the chuck roast on every side until a deep golden-brown crust develops.

Repeat with the short ribs.

Proper browning creates the foundation for the finished flavor.

5. Assemble the Roast

Return the browned meat to the roasting pan.

Arrange the marrow bones around the beef.

Pour the water carefully around the meat rather than directly over the browned crust.

Cover tightly with a heavy lid.

6. Slow Roast

Transfer the roasting pan to the oven.

Cook for approximately 8 to 10 hours.

Every hour, carefully uncover the pan and baste the meat generously with its cooking juices and rendered fat.

As the roast cooks, collagen slowly transforms into gelatin, resulting in exceptionally tender meat.

7. Roast the Marrow

After approximately five hours, test the marrow bones.

Once the marrow becomes soft, remove the bones from the oven.

Carefully scoop the marrow into a bowl.

Mix it with softened butter and a pinch of smoked salt until smooth.

Keep warm.

8. Prepare the Liver

Slice the beef liver into thick pieces.

Heat a cast-iron skillet until very hot.

Add a small amount of rendered tallow.

Cook the liver for approximately 45 to 60 seconds per side, leaving the center slightly pink.

Transfer immediately to warm melted butter.

Avoid overcooking to maintain tenderness.

9. Make the Egg Yolk Butter Sauce

Place the egg yolks into a heatproof bowl over gently simmering water.

Whisk continuously.

Slowly drizzle in warm beef drippings.

Gradually add melted butter while whisking until a smooth emulsion forms.

Fold in the warm marrow butter mixture.

Continue whisking until the sauce coats the back of a spoon.

Do not overheat, as excessive heat can cause the yolks to curdle.

10. Final High-Heat Finish

Increase the oven temperature to 260°C (500°F).

Remove the lid from the roasting pan.

Brush the meat generously with rendered tallow.

Roast uncovered for 15 to 20 minutes, allowing the exterior to become richly browned and lightly crisp.

11. Rest the Meat

Transfer the beef to a carving board.

Allow it to rest for 40 minutes before slicing.

Resting helps the juices remain inside the meat rather than running out during carving.

12. Assemble and Serve

Arrange thick slices of chuck roast and short ribs on a warm serving platter.

Spoon the warm marrow egg yolk butter sauce over the meat.

Scatter crispy beef cracklings over the top.

Serve roasted marrow bones alongside the beef.

Arrange slices of pan-seared liver around the platter.

Finish with a light sprinkle of smoked salt.

Serve immediately.

Chef’s Tips

1. Choose well-marbled beef for the most tender results.
2. Brown every side thoroughly before roasting.
3. Cook low and slow for maximum tenderness.
4. Avoid opening the oven frequently.
5. Keep the roasting pan tightly covered during slow cooking.
6. Use fresh egg yolks for the smoothest sauce.
7. Remove the liver as soon as it is lightly cooked.
8. Rest the beef before carving.
9. Warm serving plates help keep the meal hot longer.
10. Reserve every drop of cooking juices for serving.

Storage

Allow leftovers to cool completely.

Store the meat submerged in its cooking juices and rendered fat inside airtight containers.

Refrigerate for up to 5 days.

Freezing

Freeze portions together with their cooking juices for up to 3 months.

Thaw overnight in the refrigerator before reheating.

Reheating

Place the meat in a covered baking dish with reserved juices and a small amount of rendered tallow.

Heat gently in a 140°C (285°F) oven until warmed through.

Avoid high heat during reheating to help preserve tenderness.

Serving Ideas

This recipe is intended to stand on its own as a complete zero-carb meal. For those following a carnivore-style eating pattern, additional melted butter, warm beef tallow, or extra roasted marrow can be served alongside the meat for added richness. A mug of homemade beef broth prepared from the cooking juices and bones also pairs well with the meal.

Approximate Nutrition (Per Serving)

• Calories: Varies depending on portion size
• Protein: Very high
• Fat: Very high
• Carbohydrates: Virtually zero (excluding any optional non-animal ingredients)
• Fiber: 0 g
• Sugars: 0 g
• Collagen: High
• Iron: High
• Zinc: High
• Vitamin B12: High
• Fat-Soluble Vitamins: High, particularly when liver is included

Nutrition values are approximate and depend on the specific cuts of meat, fat content, and serving size.

Frequently Asked Questions

1. Can I use a different cut of beef?
Yes. Brisket, beef shoulder, cross-rib roast, or other well-marbled roasting cuts can be substituted, though cooking times may vary.

2. Why cook the beef at a low temperature?
Low-temperature roasting gives connective tissue time to break down into gelatin, producing tender meat with a rich texture.

3. Can I skip the liver?
Certainly. The roast and marrow stand well on their own, although the liver adds variety and a concentrated savory flavor.

4. Why rest the meat before slicing?
Resting allows the juices to redistribute throughout the roast, helping the meat remain moist when carved.

5. Is this recipe suitable for meal prep?
Yes. The beef stores and reheats well, and many people find the flavors become even more developed after a day in the refrigerator.

This slow-roasted butter beef recipe delivers rich, deeply developed flavor through careful cooking rather than complicated ingredients. With tender beef, roasted marrow, crisp beef cracklings, and a smooth egg yolk butter sauce, it offers a memorable centerpiece for anyone seeking a hearty, animal-based meal.