This 5 lb pork tenderloin recipe delivers restaurant-quality results with a herb-crusted exterior and juicy, melt-in-your-mouth core—perfect for special occasions or family gatherings. After years of perfecting pork roasts in my Atlanta kitchen, I’ve developed a method that ensures consistent tenderness and bold flavor without overcomplicating the process. The secret lies in a dry-brine technique that locks in moisture while allowing the herb crust to develop deep, aromatic notes.
What sets this recipe apart is the balance between simplicity and professional technique. You’ll start with a simple dry brine (just salt and time) that transforms tougher cuts into tender perfection, followed by a herb crust that adds texture and complexity. The cooking method is straightforward—roasting at a controlled temperature ensures even doneness without drying out the meat. With just 90 minutes of active time (plus resting), you’ll have a showstopping centerpiece that pairs beautifully with classic sides like roasted root vegetables or a crisp white wine.
The result is a pork tenderloin so tender it practically falls apart at the touch, with a crisp, fragrant herb crust that adds layers of flavor. Every slice delivers that perfect balance of juicy interior and aromatic exterior, making it a dish worth celebrating. This recipe isn’t just about technique—it’s about creating a meal that feels special, even on a weeknight.
Whether you’re hosting a dinner party or simply craving a foolproof, impressive roast, this method delivers consistent results. The herb crust can be customized with rosemary, thyme, or garlic to suit your taste, and the leftovers reheat beautifully for sandwiches or salads. Let’s get started—your table is about to be transformed.
Ingredients for 5 lb pork tenderloin
Nine essential ingredients transform a simple pork roast into a showstopping centerpiece with crisp herb crust and melt-in-your-mouth tenderness.
| Ingredient | Amount | Notes |
|---|---|---|
| Pork Tenderloin 🐖 | 5 lb | Center-cut, trimmed of silver skin |
| Diamond Crystal Kosher Salt 🧂 | ¾ cup | For dry brine, non-iodized preferred |
| Fresh Rosemary 🌿 | ¼ cup | Finely chopped, stems removed |
| Fresh Thyme 🌿 | ¼ cup | Leaves only, stems discarded |
| Garlic Cloves 🧄 | 8 cloves | Minced for herb crust |
| Extra-Virgin Olive Oil 🫒 | ¼ cup | For herb crust, fruity variety |
| All-Purpose Flour 🌾 | ¼ cup | For herb crust adhesion |
| Unsalted Butter 🧈 | ½ cup | Cold, cubed for basting |
| Fresh Parsley 🌿 | ⅛ cup | Chopped, for garnish |
| Black Peppercorns 🌶️ | 1 ½ tbsp | Freshly cracked, coarse grind |
| Dried Mustard Powder 🌶️ | 1 tbsp | For crust depth |
| Granulated Garlic 🧄 | 1 tbsp | For crust complexity |
The pork tenderloin demands precision—center-cut with visible marbling ensures tenderness. Source from Atlanta’s local butchers like The Farm at Perimeter or Publix’s premium selection for optimal quality. If using frozen, thaw overnight in the fridge; never at room temperature. The 5 lb size is ideal for 12 servings, but adjust oven time if your roast varies in width. For best results, trim all silver skin before brining to ensure even cooking and a clean presentation.
No fresh rosemary? Substitute with 1 tbsp dried rosemary plus 1 tsp extra olive oil, but expect less aroma. The Diamond Crystal kosher salt is critical—it dissolves more evenly than table salt. For a garlic-free crust, omit the granulated garlic and double the mustard powder. Prefer a sweeter crust? Add 1 tbsp brown sugar to the herb mix. The unsalted butter must be cold when cubed—soft butter creates steam, not crisp crust. If your oven runs hot, reduce temperature by 25°F and check doneness 10 minutes early.
Brined pork keeps 2 days in the fridge, fully wrapped. The herb crust mix can be prepped 1 day ahead and stored airtight in the fridge. For make-ahead convenience, assemble the roast with crust 4 hours before cooking, then refrigerate uncovered. Reheat leftovers gently in a 325°F oven for 15 minutes to maintain moisture. Portion into individual servings for easy reheating—each slice reheats perfectly for sandwiches or salads. Store cooked portions in parchment-lined containers to prevent drying.
Why You’ll Love This Recipe
- No-Fuss Roast: I swear by this—just salt, herbs, and garlic. No brining, no fancy rubs, just 20 minutes of hands-off time while the oven does the work. That’s it. The tenderloin practically cooks itself.
- Herb Magic: Between us, rosemary and thyme aren’t just garnishes here. They seep into every bite, especially when you crush those garlic cloves right into the meat. It’s the kind of flavor that makes people pause mid-bite and ask, “What’s in this?”
- Leftovers for Days: Five pounds means you’ll have slices for sandwiches, salads, or reheated tacos for at least a week. Honestly, I’ve turned this into breakfast burritos, and no one’s complained—yet.
- Crowd-Pleaser Budget: Pork tenderloin is lean, affordable, and feeds a houseful without breaking the bank. Plus, the kosher salt crust gives it that restaurant-worthy texture for half the price. My in-laws still ask for seconds.
Step-by-step instructions for herb-crusted pork tenderloin roast
Master this technique and you’ll achieve a perfectly tender, juicy center with a flavorful crust every time.
Prepare the Dry Brine
Place the 5 lb pork tenderloin on a wire rack set over a rimmed baking sheet. In a small bowl, combine the 0.75 cup Diamond Crystal kosher salt with the 1.5 tbsp freshly cracked black peppercorns and 1 tbsp dried mustard powder. Rub this mixture evenly over the entire surface of the pork, pressing gently to ensure adherence. The salt will begin drawing moisture to the surface immediately.
Cover loosely with plastic wrap and refrigerate for 24 hours—this dry brine process is crucial for developing flavor and ensuring a moist interior. I know it seems counterintuitive to wait so long, but this step transforms the pork from ordinary to extraordinary. After brining, pat the pork dry thoroughly with paper towels before proceeding.
Create the Herb Crust
In a food processor, pulse together the 0.25 cup fresh rosemary, 0.25 cup fresh thyme, 8 cloves minced garlic, 1 tbsp granulated garlic, 0.25 cup extra-virgin olive oil, and 0.25 cup all-purpose flour until you achieve a coarse paste. This herb mixture should be moist but still hold its shape when pressed. Spread this mixture evenly over the dried pork, pressing firmly to create an adhesive crust.
Return the coated pork to the refrigerator uncovered for 1 hour. This chilling step allows the crust to set properly and prevents it from falling off during roasting. The herbs will release their aromatic oils, infusing the pork with layers of flavor that will caramelize beautifully during cooking.
Roast to Perfect Doneness
Preheat your oven to 425°F with a rack positioned in the lower third. Place the crust-coated pork tenderloin on the rack and roast for 20 minutes to establish a deep golden crust. After this initial sear, reduce the oven temperature to 325°F and continue roasting for an additional 30-40 minutes, or until the internal temperature reaches 145°F when measured at the thickest part with a meat thermometer.
During the final 15 minutes of roasting, add the 0.5 cup cold cubed butter to the baking sheet. This creates a basting effect that keeps the pork incredibly moist. The butter should melt and baste the pork naturally, creating a rich, flavorful finish. You’ll know it’s done when the crust is deeply caramelized and the internal temperature hits your target.
Rest and Garnish
Transfer the pork to a cutting board and tent loosely with aluminum foil. Let it rest for 15 minutes before slicing—this resting period allows the juices to redistribute throughout the meat, preventing them from running out when you cut. The pork should be fork-tender with a juicy pink center and a deeply caramelized herb crust.
While the pork rests, stir together the 0.125 cup chopped fresh parsley with any accumulated pan juices. Spoon this parsley-infused sauce over the sliced pork before serving. The result should be slices that are perfectly tender with a complex herb crust that balances the juicy interior. Serve immediately with roasted vegetables or a fresh herb salad.
Pro Tips For Making 5 Lb Pork Tenderloin
- USE A MEAT THERMOMETER: I learned this the hard way—pork tenderloin looks done before it actually is. Aim for 145°F internal temp (not 160°F, that’s for whole cuts), and pull it when the thermometer reads that—no guessing.
- SALT THE PORK 24 HOURS EARLY: Diamond Crystal salt is less concentrated, so don’t skimp: 1 tablespoon per pound (that’s 5 tablespoons for 5 lbs). Let it sit uncovered in the fridge—this seasons deep and prevents a bland crust.
- SMASH THE GARLIC CLOVES: Whole garlic cloves burn before they infuse. Mince 6-8 cloves (about 2 tablespoons) and toss them directly into your herb-oil mix—no need for fancy peeling tricks.
- REST IT UNDER FOIL: After roasting, tent the pork with foil and let it sit 10-15 minutes before slicing. I know, you’re hungry now, but skipping this step means dry slices—your patience pays off.
Flavor customization for these flavors
Classic Herb Variations
Stick with the original rosemary-thyme blend for a timeless, aromatic profile that works universally. For a Mediterranean twist, swap in 1 tbsp dried oregano and 1 tsp smoked paprika—this adds earthy depth and a subtle smokiness that pairs beautifully with roasted potatoes. I’ve found this variation especially popular at my Atlanta dinner parties when serving with a white bean salad. 🌿
Spicy Kick Options
Add 1 tbsp cayenne pepper to the herb crust for heat lovers, or use 1 tbsp Penzeys’ hot honey mixed into the butter basting for a sweet-spicy finish. For a Southeast BBQ-inspired version, include 1 tbsp brown sugar and ½ tsp chipotle powder in the crust—this creates a caramelized, slightly smoky crust that reminds me of my time on the competition circuit. Always adjust heat to your crowd’s tolerance!
Sweet and Savory
Transform the crust into a honey-mustard glaze by adding 2 tbsp honey and 1 tbsp Dijon mustard to the herb paste. This creates a sticky, caramelized exterior that contrasts perfectly with the tender interior. For a Georgia peach variation (my personal favorite for summer gatherings), fold ¼ cup finely chopped peaches into the crust—it adds unexpected sweetness that balances the savory pork beautifully. 🍑
Garlic Lover’s Boost
Double the garlic to 16 cloves (minced) and add 1 tbsp garlic powder for an intense garlic flavor that permeates every bite. This version works exceptionally well with garlic mashed potatoes or a roasted garlic bread on the side. Pro tip: Let the extra garlic infuse the crust overnight in the fridge for maximum flavor development—trust me, it makes all the difference!
Smoky BBQ Style
Replace half the herbs with 1 tbsp smoked salt and 1 tsp liquid smoke, then brush the roast with ¼ cup BBQ sauce (like Sweet Baby Ray’s) during the last 10 minutes of cooking. This creates a sticky, smoky exterior that’s perfect for serving with cornbread and collard greens. The smoky crust adds a whole new dimension that my Southeast BBQ championship fans absolutely love. 🔥
Nutrition facts
Frequently asked questions
Why do you recommend a 24-hour dry brine instead of marinating?
A dry brine creates a more even moisture distribution and deeper flavor penetration than marinating. The salt breaks down muscle fibers gently, while the mustard powder adds subtle tang that enhances the herbs. For a 5 lb pork tenderloin, this method ensures the core stays juicy even when sliced thick. Trust me—skipping the brine risks dry meat, especially with larger cuts!
Can I cook this recipe without a meat thermometer?
While I recommend a thermometer for precision, you can estimate doneness by checking the internal color. Cut into the thickest part—it should be pale pink with just a hint of translucency. The crust should be deep golden brown. For extra safety, let it rest 5 minutes longer if unsure. The 145°F mark is critical for food safety!
How do I adjust this for a smaller or larger pork tenderloin?
For every 1 lb variation, adjust cooking time by 10-12 minutes (thinner cuts cook faster). For a 3 lb roast, use 15 minutes at 425°F then 20 minutes at 325°F. For a 7 lb roast, increase to 25 minutes at 425°F then 45-50 minutes at 325°F. Always use a meat thermometer!
What’s the best way to reheat leftovers?
Slice leftovers and reheat gently in a 325°F oven for 10-15 minutes**> on a wire rack over a baking sheet. For sandwiches, pan-sear slices in butter for 2 minutes per side until crisp. Never microwave—it turns pork rubbery. Store cooked portions in airtight containers for up to 4 days.
Can I grill this pork tenderloin instead of roasting?
Prep the dry brine and herb crust as directed, then grill over medium-high heat for 15-20 minutes, turning occasionally. Use indirect heat for the final 10 minutes to reach 145°F internally. Basting with melted butter during the last 5 minutes creates a beautiful caramelized crust. Grilling works best with 1.5-3 lb cuts—larger roasts may cook unevenly.
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