Discover the most luxurious cut in beef with our Beef Whole Tenderloin 5lb Argentina Grass-Fed 40+ Days Aged — the ultimate centerpiece for special occasions, date nights, or when you want to impress without effort.
Sourced from free-roaming, grass-fed cattle on Argentina’s nutrient-rich Pampas, this 5-pound whole beef tenderloin (also known as filet mignon roast) delivers an exceptionally clean, delicate beef flavor with a subtle sweetness and mineral notes that only true grass-fed beef provides. Naturally lean yet beautifully marbled, it offers a silky, buttery texture that melts in your mouth — far more flavorful and nutrient-dense than conventional grain-fed tenderloin.
What elevates this cut to perfection is the 40+ days aging process. Extended dry-aging gently breaks down connective tissue for unmatched tenderness while intensifying the flavor into deep, complex layers of nutty, buttery umami with hints of aged cheese and roasted hazelnuts. The result is a tenderloin that is dramatically more flavorful and tender than fresh beef, with a dark, concentrated exterior that develops a stunning crust when seared.
This compact 5 lb boneless whole tenderloin is the perfect size for 8-10 generous servings. Its uniform shape makes it effortless to roast whole or slice into thick, restaurant-quality filet mignon steaks. Hormone-free, antibiotic-free, and raised using traditional Argentine methods, it’s the top choice for anyone seeking aged grass-fed tenderloin, Argentina whole beef tenderloin, aged filet mignon roast, or premium grass-fed tenderloin.
Best Way to Prepare: Classic Reverse-Sear Roast (Ideal for Grass-Fed Tenderloin)
Because tenderloin is naturally lean and extremely tender, the reverse-sear method gives you perfect edge-to-edge doneness and a beautiful crust without overcooking the delicate interior.
1. Prep: Pat the tenderloin completely dry with paper towels. Trim any silver skin if needed (or ask your butcher). Season generously all over with kosher salt and freshly cracked black pepper (about 1 tsp salt per pound). Optional: rub with minced garlic, fresh thyme, or a light brush of olive oil or ghee. Place uncovered on a wire rack in the fridge for 12–24 hours to dry the surface.
2. Temper: Remove from the refrigerator 1–2 hours before cooking to bring it close to room temperature.
3. Low & Slow Oven Roast:
- Preheat oven to 250–275°F.
- Place the tenderloin on a rack in a roasting pan.
- Roast until the internal temperature reaches 115–120°F in the thickest part for medium-rare (approximately 20–25 minutes per pound — about 100 minutes total for a 5 lb roast). Use a meat thermometer for accuracy.
4. High-Heat Sear:
- Remove from oven, tent loosely with foil, and rest 15–20 minutes (internal temp will rise 5–10°F).
- Heat a large cast-iron skillet or grill to 500°F+.
- Sear the tenderloin on all sides until a deep mahogany crust forms (about 1–2 minutes per side). For authentic Argentine flair, finish on a hot charcoal grill and serve with vibrant chimichurri sauce.
5. Rest & Serve: Rest another 10 minutes, then slice into 1.5–2 inch thick filet mignon steaks or serve whole and carve tableside.
Pro Tips for Grass-Fed Tenderloin Success:
- Grass-fed beef is leaner, so never cook beyond medium-rare (final internal temperature 130–135°F) to keep it incredibly tender and juicy.
- Avoid piercing the meat — use a good instant-read thermometer.
- The long dry-aging already provides exceptional tenderness, so focus on gentle heat and proper resting.
This 5 lb Argentina Grass-Fed 40+ Days Aged Whole Tenderloin offers the perfect balance of elegance, flavor, and value — a true gourmet experience that turns any meal into a celebration. Order now and savor the finest dry-aged grass-fed tenderloin available!
