5 Lb Pork Tenderloin Recipe: Succulent Roast with Herb Crust

This 5 lb pork tenderloin recipe delivers a tender, juicy roast with a flavorful herb crust that's perfect for family dinners or special occasions. I developed this method while working at The Smoky Pig, where we served thousands of pork dishes weekly.

The secret lies in a simple dry rub and precise roasting temperature. At 375°F, the pork cooks evenly without drying out, while the herb crust forms a golden, aromatic seal that locks in moisture.

You'll end up with a centerpiece-worthy roast that's impressively tender yet easy enough for weeknight cooking. The herb crust adds layers of savory depth that complement the natural sweetness of the pork.

Serve with your favorite sides for a complete meal that showcases the pork's natural flavors. Here's how to make it perfectly every time.

Ingredients for 5 lb pork tenderloin

Nothing exotic here—just quality pork and a handful of herbs for that perfect crust.

The pork is the star, so don’t skimp. Whole Foods or Costco have consistently good tenderloins with even marbling. Look for pieces that are uniform in thickness—this ensures even cooking. I always grab a few extra pounds when I’m there (it freezes beautifully). For the dried herbs, Penzeys is my go-to, but any reputable brand with vibrant color and strong aroma works just fine.

No fresh herbs? Dried work at one-third the amount—just rehydrate them slightly with a bit of olive oil. Out of Dijon? Whole-grain mustard adds a nice texture, or a splash of apple cider vinegar plus a pinch of sugar gets you close. The garlic can be pre-minced in a pinch, but fresh tastes brighter. If your tenderloin has a thin end, tuck it under to create even thickness for roasting.

The herb crust can be mixed ahead and stored in the fridge for 24 hours. Leftovers? Slice and reheat gently in a warm oven—they’ll keep for 4-5 days in the fridge or 3 months frozen. Always let the pork rest before carving (trust me on this one).

Step-by-step instructions for succulent pork tenderloin with herb crust

Here's the method that guarantees tender, flavorful pork with a perfect herb crust every time.

In a small bowl, combine the 2 tbsp Dijon mustard, 2 tbsp olive oil, 1 tbsp garlic powder, 1 tbsp onion powder, 1 tbsp dried rosemary, 1 tbsp dried thyme, and 1 tsp smoked paprika. Mix until it forms a thick paste.

Finely mince the 6 cloves fresh garlic cloves, chop the 2 tbsp fresh rosemary, and strip the leaves from the 2 tbsp fresh thyme. Add these to the paste and stir well. This aromatic blend ensures every bite bursts with herb-infused flavor.

Pat the 5 lb pork tenderloin completely dry with paper towels. This step is crucial for achieving a good sear and helping the herb paste adhere properly. Season all sides generously with 2 tbsp kosher salt and 1 tbsp black pepper.

Using your hands, rub the herb paste all over the pork, pressing firmly to create an even coating. The paste should cover the entire surface, creating a crust that will caramelize beautifully during roasting. Let the coated pork sit at room temperature for 15 minutes while you preheat the oven.

Preheat your oven to 425°F. Heat a large oven-safe skillet or roasting pan over medium-high heat. Add the pork and sear for 2-3 minutes per side until golden brown. This step develops a flavorful crust and locks in the juices.

Don't move the pork around too much—let it develop a deep, rich color before flipping. The searing process creates a fond in the pan that will enhance the overall flavor of the dish.

Transfer the seared pork to the preheated oven and roast for 25-30 minutes, or until the internal temperature reaches 145°F on an instant-read thermometer. The exact time will depend on the thickness of your tenderloin.

You'll know it's ready when the juices run clear and the pork feels firm but slightly springy to the touch. If you notice the herb crust browning too quickly, tent the pan loosely with foil to prevent over-browning.

Remove the pork from the oven and transfer it to a cutting board. Tent loosely with foil and let it rest for 10-15 minutes. This resting period allows the juices to redistribute throughout the meat, ensuring every slice stays moist and flavorful.

Slice the pork into 1-inch thick medallions. The herb crust should be a beautiful golden color, and the meat should be tender and juicy. Serve immediately while still warm for the best texture and flavor.

Creative variations of this dish

Asian-Inspired Glaze

Swap the herb crust for a sticky soy-ginger glaze by whisking ½ cup soy sauce, ¼ cup honey, 2 tbsp rice vinegar, and 1 tbsp grated ginger. I learned this technique during my apprenticeship in Charleston. 🌶️

Cajun Blackened Style

Create a bold Cajun rub with 1 tbsp paprika, 1 tsp cayenne, 1 tsp thyme, and 1 tsp oregano. Press onto the pork before searing in a screaming-hot cast iron skillet—my vintage collection comes in handy here.

Balsamic Fig Version

After searing, top with ½ cup fig jam and ¼ cup balsamic reduction. Roast as usual, then finish with crumbled goat cheese for a sweet-savory twist that wows at dinner parties.

Coffee-Chili Rub

Mix 2 tbsp ground coffee, 1 tbsp chili powder, and 1 tbsp brown sugar for a deep, smoky crust. The coffee enhances the pork’s natural richness—trust me, this works beautifully. 🔥

Mustard-Herb Crust

Replace the Dijon with whole-grain mustard and add 1 tbsp chopped tarragon. The texture adds a gourmet touch, and the tarragon pairs wonderfully with pork’s sweetness.

Apple-Cider Brined

Soak the tenderloin in 4 cups apple cider, ¼ cup salt, and 2 tbsp black peppercorns for 4 hours before cooking. This keeps the meat extra juicy and adds a subtle fruitiness.

Frequently asked questions