Grilled Tenderloin Steak Recipe: Buttery Sear With Herb Crust

This grilled tenderloin delivers tender perfection with a buttery herb crust that elevates the natural beef flavor. The high-heat sear creates a beautiful crust while keeping the inside juicy.

I developed this method to highlight the tenderloin’s delicate texture without overpowering it. The herb butter adds richness and aroma, making every bite unforgettable.

Ingredients for Grilled Tenderloin Steak

Prime beef, fresh herbs, and rich butter create this unforgettable grilled masterpiece.

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The beef is paramount here. USDA Prime tenderloin from a reputable butcher ensures optimal marbling and tenderness. Whole Foods or Costco offer excellent pre-trimmed options for convenience. Look for steaks with a vibrant red color and minimal connective tissue. For the herb butter, European-style butter (like Plugrá or Kerrygold) provides superior richness and lower water content.

No fresh rosemary or thyme? Dried herbs at one-third the amount work in a pinch, though fresh delivers superior aroma. Substitute shallot with red onion if needed. For a more robust crust, add 1 tsp smoked paprika to the Dijon mustard. The vinegar can be swapped with apple cider vinegar without noticeable difference. Always bring butter to room temperature before mixing.

Prepare the herb butter up to 3 days ahead—store covered in the refrigerator. The steaks can be seasoned 1 hour before grilling but no longer (salt draws out moisture). Cooked steaks rest 10 minutes before slicing. Herb butter keeps frozen for 3 months in an airtight container.

Step-by-Step Instructions for Grilled Tenderloin Steak

Master the technique for perfectly tender meat with a flavorful herb crust every time.

Step 1: Prepare the Herb Butter

In a small bowl, combine the 0.5 cup unsalted butter (room temperature), 2 tbsp fresh rosemary, 2 tbsp fresh thyme leaves, minced 4 cloves garlic cloves, 1 whole shallot (finely minced), 1 tsp lemon zest, and 1 tsp red wine vinegar. I use a fork to blend everything thoroughly until the herbs are evenly distributed throughout the butter.

This compound butter infuses the steak with aromatic depth. The red wine vinegar adds a subtle brightness that cuts through the richness of the beef tenderloin steaks. Set this mixture aside while you prepare the meat—it should soften slightly but maintain its shape for easy application.

Step 2: Season and Coat the Steaks

Pat the 2 lb beef tenderloin steaks completely dry with paper towels. This step is non-negotiable—moisture prevents proper searing. Season both sides generously with the 1.5 tsp kosher salt and 1 tsp freshly ground black pepper, pressing the seasoning into the surface of the meat to ensure adhesion.

Next, brush the steaks lightly with the 1 tbsp Dijon mustard. This acts as a flavorful glue for the herb butter. Then, spread the herb butter mixture evenly over the top of each steak, creating a thick, flavorful crust. Let the steaks sit at room temperature for 20-30 minutes to take the chill off before grilling.

Step 3: Sear Over High Heat

Preheat your grill to high heat (about 450-500°F). Clean the grates thoroughly with a grill brush to prevent sticking. Just before placing the steaks on the grill, brush the grates with the 2 tbsp olive oil. This creates a non-stick surface and adds a subtle depth of flavor.

Place the steaks on the grill, butter-side down. Sear undisturbed for 3-4 minutes until a deep, golden crust forms. You’ll see the edges start to caramelize—that’s your visual cue. Flip the steaks and sear the other side for another 3-4 minutes for medium-rare. Avoid pressing the steaks with your tongs; this squeezes out precious juices.

Step 4: Rest and Serve

Transfer the steaks to a cutting board and tent loosely with foil. Let them rest for 8-10 minutes before slicing. This resting period allows the juices to redistribute throughout the meat, ensuring every bite is tender and flavorful. The internal temperature will rise by 5-10°F during this time.

Slice the steaks against the grain into ½-inch thick pieces. The herb butter will have melted slightly, creating a luxurious sauce that pools around the meat. Serve immediately while the crust is still crisp and the interior remains juicy.

Pro Cooking Tips for This Recipe

Perfect Grill Setup

I always preheat my Weber Genesis to 450-500°F for at least 15 minutes before grilling. This ensures consistent high heat for a proper sear. Clean grates with a brass brush, then oil them right before adding the steaks. 🔥

Temperature Control

Use a dual-probe thermometer—I trust ThermoWorks Smoke—to monitor both grill and steak temps. For medium-rare, pull the steaks at 125°F internal; they’ll rise to 130-135°F while resting.

Butter Management

Don’t let the herb butter drip into the flames—it’ll cause flare-ups. I place steaks on the grill butter-side up first, then flip to sear the crust side. This prevents burning while keeping the butter intact.

Resting is Key

Tent steaks loosely with foil and rest for 8-10 minutes. This lets juices redistribute. Slice too soon, and you’ll lose that perfect tenderness. I learned this the hard way at my first BBQ competition.

Slicing Technique

Use a long, sharp knife—my Wüsthof 8-inch is ideal. Slice against the grain in ½-inch pieces. This shortens muscle fibers for maximum tenderness. The herb butter sauce will pool beautifully on the plate. ✨