If you crave bold, beefy flavour with a touch of finesse, the Black Onyx Angus Rump MB3-4+ from Rangers Valley is your answer. This premium cut comes from one of Australia's most respected producers, delivering a top-tier eating experience that carnivores and connoisseurs alike appreciate.
Raised with care and finished with precision, this rump steak offers a satisfying chew, balanced marbling, and a deep, clean flavour that reflects genuine craftsmanship.
At Carnivore Society, we source only what meets our strict standards. This is not just any rump steak. It is finely marbled, expertly aged, and grain-fed Angus beef with a marbling score that elevates every bite.
Butcher’s Notes:
-
Cut Weight: Approx. 8 to 9 kg whole piece
-
Breed: 100% Black Angus (Verified Black Onyx Program)
-
Marble Score: MB 3–4+
-
MSA Graded: Yes (Meat Standards Australia Certified)
-
Feeding: Long-Fed Grain (Minimum 250Days)
-
Ageing Process: 21 Days
-
Processing: Hand-trimmed, full cap on
-
Packaging: Vacuum-sealed, freezer-safe
-
Shelf Life: Up to 10 weeks refrigerated
-
Delivered Fresh: Chilled with Option for Frozen Dispatch
-
Cooking Methods: Ideal for BBQ, pan-searing, roasting or slicing into rump steaks
What Sets Rangers Valley Black Onyx Angus Apart
Not all beef is created equal. Here is why Black Onyx Angus from Rangers Valley stands in a league of its own:
-
Superior Genetics: The Black Onyx program begins with purebred Angus cattle selected for marbling and consistency. The genetics are elite, the feeding protocol long and precise, and no hormone growth promotants (HGPs) are ever used.
-
Extended Grain Feeding: Cattle are grain-fed for over 270 days, resulting in rich marbling and deep flavour.
-
Marbling You Can See: With a marbling score of 3–4+, this beef delivers a buttery mouthfeel while staying boldly meaty.
-
Sustainable and Ethical Farming: These cattle are raised in northern New South Wales, under Rangers Valley’s Black Onyx brand, a program known for producing some of the world’s most marbled Angus beef.
-
Precision and Consistency: Each cut is expertly graded, aged, and trimmed for reliable results every time.
-
Trusted by Top Chefs: Black Onyx beef appears on menus worldwide, known for its clean finish and tender, rich texture.
Why the Rump Deserves More Respect
It’s time to stop underrating the rump. This cut delivers serious flavour, impressive versatility, and a steakhouse-worthy experience at home. Here is why:
-
Underrated but Powerful: Often overlooked in favour of ribeyes and tenderloins, rump steak offers exceptional flavour and structure when given proper attention.
-
Cut from the Hindquarter: Taken from the hardworking rear of the animal, the rump is naturally leaner while still being robust and full of character.
-
Versatile in the Kitchen: Its firm texture makes it perfect for grilling, slicing, or roasting, making it one of the most flexible cuts for everyday cooking.
-
Top-Tier Quality with Every Cut: The Black Onyx Angus Rump is sourced from elite cattle and professionally trimmed for consistency and visual appeal.
-
Enough Marbling to Stay Juicy: With a marbling score of MB3–4+, this rump has just the right amount of fat to stay moist and flavourful when appropriately cooked.
-
For True Steak Lovers: If you crave steak that tastes like real beef, bold, savoury, and satisfying, this is the cut that delivers.
MB3–4+: Balanced Marbling, Elevated Flavour
Marbling score is a key indicator of intramuscular fat and the richness it brings to your meat. MB3–4+ signifies a medium level of marbling that provides the ideal balance between flavour and mouthfeel.
It ensures a moist, buttery texture without overwhelming the natural meatiness of the rump. This score is where serious steak lovers find their sweet spot. It is rich enough to impress your palate but clean enough to enjoy every week.
When paired with proper ageing and a skilled trim, MB3–4+ delivers a consistent cook and a reliable finish, whether grilled, sous vide, or pan-seared.
Cooking Tips for a Juicy Rump
Rump steak rewards the right technique. Follow these simple steps to turn this underrated cut into a show-stopping meal.
-
Bring to Room Temperature: Take the rump out of the fridge at least 30 minutes before cooking. This ensures even heat distribution for a consistently cooked meal.
-
Pat Dry and Season Well: Use paper towels to dry the surface, then season generously with sea salt. Dry meat sears better, giving you a rich crust.
-
Use a Hot Pan or Grill: Preheat your skillet or grill until it is smoking hot. High heat locks in juices and develops flavour through the Maillard reaction.
-
Sear First, Then Cook to Temp: Sear each side for 2 to 3 minutes, then lower the heat or move to indirect heat. Aim for medium rare for the best tenderness.
-
Rest Before Slicing: Let the meat rest for 5-10 minutes after cooking. This allows the juices to redistribute, keeping the meat moist.
-
Slice Against the Grain: Always cut across the muscle fibres. This shortens the grain, giving you a more tender bite every time.
Flavour Profile: Earthy, Bold, and Clean
The flavour of Black Onyx rump is assertive yet refined. It starts with a clean, earthy aroma that builds into layers of roasted nut, savoury mineral, and subtle caramel from the marbling. As you chew, the texture is juicy without being greasy, and the finish is dry yet lingering in the best way.
This cut rewards slow eating. You will notice how the marbled fat melts on your tongue, carrying flavour across every corner of your mouth. It is a steak that speaks directly to meat lovers who appreciate balance, depth, and a sense of origin.
Trimmed, Sealed and Delivered with Care
Each cut is:
-
Whole Rump, Expertly Packed: Each order includes a whole Black Onyx rump, approximately 8kg, vacuum-sealed to lock in freshness and protect against freezer burn.
-
Frozen for Freshness: Cuts are delivered frozen to maintain peak quality. Once thawed, the rump should be consumed within 5 days for best flavour and safety.
-
Certified Safe Handling: Our packaging process meets strict HACCP food safety standards, ensuring your meat arrives clean, safe, and ready to enjoy.
-
Full Product Traceability: Every pack includes essential details like marble score, weight, use-by date, and region of origin so you know exactly what you’re getting.
-
Freezer-Safe and Flexible: Vacuum-sealed packaging is freezer-safe, letting you store your steak long-term without compromising texture or taste.
-
Australia-Wide Cold Delivery: We ship across Australia using temperature-controlled insulation. Your steak arrives chilled, not frozen, unless you request it.
-
Helpful Tips Included: Every box comes with expert cooking and storage tips to guide you from fridge to flame with confidence.
Best Occasions and Pairings
This cut is perfect for hearty meals and crowd-pleasing dishes. Use it for:
-
Midweek steak nights with minimal prep
-
Backyard barbecues with bold sides
-
Sliced steak salads or protein-packed wraps
-
Stir-fries, fajitas, or beef skewers
-
Whole roast carving for family-style dinners
Sauces and Sides: Pair with peppercorn sauce, chimichurri, or garlic herb butter. Serve with roasted root vegetables, crispy potatoes, or charred greens.
Drinks: Medium-bodied reds such as Tempranillo, Grenache, or Malbec enhance the rump’s flavour beautifully.
Why Buy Black Onyx Angus from Carnivore Society?
Carnivore Society is not just a retailer. We are a collective of meat lovers, butchers, and producers dedicated to clean, honest, premium meat.
Our partnership with Rangers Valley allows us to bring you Black Onyx Angus cuts that are typically reserved for top restaurants and export markets. This particular cut is rarely available to the public. Most Black Onyx Angus MB3–4+ rumps are reserved for fine-dining establishments or export markets. When you shop with us, you get:
-
Verified marble scores and full product traceability
-
Expert butchery and packaging handled with care
-
Chilled, fast delivery across Australia
-
Cooking support, product education, and satisfaction guarantees
-
A curated selection of cuts you will not find in supermarkets
Ready to Taste the Difference?
Your steak should do more than satisfy. It should excite your senses, nourish your body, and reflect its origins. The Black Onyx Angus Rump MB3–4+ does all that and more.
Whether you are new to premium beef or a long-time enthusiast, this cut earns a permanent place in your fridge. Order today to secure yours before stock runs out.
Taste the difference of ethically raised, expertly handled, and perfectly marbled beef. Welcome to the future of flavour. Welcome to Carnivore Society.
