This oven baked pork tenderloin is the kind of dinner that feels special enough for the weekend but easy enough for a weeknight. It’s seared in a cast iron skillet until the outside develops a beautifully charred, caramelized crust, then finished in the oven with a balsamic herb marinade for a juicy, flavorful result.
The herb blend (parsley, sage, rosemary, and thyme) is a direct nod to the classic English ballad Scarborough Fair (Child Ballad #2), which shares its riddle structure with the older The Elfin Knight and dates back at least to 1670. Those timeless herbs give this oven baked pork tenderloin an aromatic depth that feels both comforting and sophisticated. Serve it with roasted red potatoes and a glass of wine for a polished, health-conscious dinner that still feels indulgent.
Why you’ll love this oven baked pork tenderloin
This oven baked pork tenderloin works because it layers flavor at every step. The skillet sear adds color and a caramelized crust, the marinade keeps the meat flavorful, and the oven finish brings everything together without overcooking the tenderloin.
Pork tenderloin is also a lean cut, which makes it a smart choice when you want a satisfying dinner that still feels light. USDA nutrient data show pork tenderloin is protein-rich with key nutrients, and Pork.org notes that pork tenderloin can fit into a heart-conscious eating pattern when prepared without added fat or sodium.
Ingredients
- 1 to 1 1/2 pounds pork tenderloin
- 8 garlic cloves, peeled (fresh or roasted)
- 1/4 cup balsamic vinegar
- 1/4 cup olive oil
- 2 tablespoons chopped fresh parsley
- 1 tablespoon chopped fresh rosemary
- 1 tablespoon chopped fresh thyme
- 1 tablespoon chopped fresh sage
- 1 teaspoon sea salt
- 1/2 teaspoon black pepper
- 1 tablespoon olive oil, for searing if needed
Fresh or dried herbs
Fresh herbs give the brightest flavor in this oven baked pork tenderloin, but dried herbs work too. If you swap to dried, use about one-third the amount:
- 2 teaspoons dried parsley
- 1 teaspoon dried rosemary
- 1 teaspoon dried thyme
- 1 teaspoon dried sage
How to make oven baked pork tenderloin
- Preheat the oven to 400°F.
- Trim any excess fat or silver skin from the pork tenderloin.
- Use a small sharp knife to cut small slits all over the pork. Insert the garlic cloves directly into the openings. If any cloves are especially large, halve them first so they fit more easily. (Note: If you prefer a softer, sweeter garlic flavor, roast the garlic first. See How to roast garlic section for steps.)
- In a bowl, whisk together the balsamic vinegar, olive oil, parsley, rosemary, thyme, sage, sea salt, and black pepper.
- Place the pork in a shallow dish and pour the marinade over the top. Coat the meat well and marinate for at least 30 minutes, or up to 8 hours in the refrigerator.
- Heat a cast iron or other oven-safe skillet over medium-high heat with a little olive oil.
- Remove the pork from the marinade and sear it in the skillet for 1 to 2 minutes per side, until browned all over and nicely caramelized.
- Pour any remaining marinade over the pork before placing the skillet in the oven.
- Roast for about 15 to 20 minutes, or until the internal temperature reaches 145°F at the thickest part.
- Remove from the oven and let the pork rest for 5 to 10 minutes before slicing.
Optional vegetable add-in
If you want to make this oven baked pork tenderloin a one-pan meal, add a quick-cooking vegetable like zucchini to the skillet and stir into the marinade after the pork has baked for 5 to 10 minutes. The exact timing depends on the vegetable and how fast it cooks at 400°F. Zucchini works especially well because it softens quickly without needing a long roast.
How to roast garlic
- Heat the oven to 400°F.
- Slice the top off one head of garlic to expose the cloves.
- Drizzle with olive oil and wrap it in foil.
- Roast for 35 to 45 minutes, until soft and golden.
- Cool slightly, then squeeze the roasted garlic from the skins.
You can tuck roasted garlic into the pork slits, spread it over the sliced pork, or serve it alongside the finished roast.
Suggested side dishes
This oven baked pork tenderloin pairs beautifully with roasted red potatoes, Brussel sprouts, green beans, asparagus, or a simple green salad. The balsamic-herb flavor also works well with a medium-bodied red or a dry white wine, especially if you’re serving it for a relaxed weekend dinner.
FAQ: Oven Baked Pork Tenderloin
Can I skip searing the pork tenderloin?
Searing creates the caramelized crust, but you can bake directly from the marinade at 425°F for 20-25 minutes if you’re short on time.
What if I don’t have fresh herbs for oven baked pork tenderloin?
Use dried herbs at 1/3 the amount listed. They rehydrate nicely in the balsamic marinade during cooking.
How do I know when to add zucchini to oven baked pork tenderloin?
Add zucchini (or other quick-cooking veggies) after 5-10 minutes of roasting. They need 10-15 minutes total at 400°F to soften without getting mushy.
Can I use a different cut instead of pork tenderloin?
Pork loin works but will be drier. Adjust cooking time upward and check for 145°F. Tenderloin cooks fastest and stays most tender.
Oven Baked Pork Tenderloin with a Beautiful Balsamic Marinade
Ingredients
- 1 to 1 1/2 pounds pork tenderloin
- 8 garlic cloves peeled; fresh or roasted
- 1/4 cup balsamic vinegar
- 1/4 cup olive oil
- 2 tablespoons chopped fresh parsley or 2 teaspoons dried parsley
- 1 tablespoon chopped fresh rosemary or 1 teaspoon dried rosemary
- 1 tablespoon chopped fresh thyme or 1 teaspoon dried time
- 1 tablespoon chopped fresh sage or 1 teaspoon dried sage
- 1 teaspoon sea salt
- 1/2 teaspoon black pepper
- 1 tablespoon olive oil for searing if needed
Instructions
- Preheat the oven to 400°F.
- Trim any excess fat or silver skin from the pork tenderloin.
- Use a small sharp knife to cut small slits all over the pork. Insert the garlic cloves directly into the openings. If any cloves are especially large, halve them first so they fit more easily. (Note: If you prefer a softer, sweeter garlic flavor, roast the garlic first. See How to roast garlic section in Recipe Notes for steps.)
- In a bowl, whisk together the balsamic vinegar, olive oil, parsley, rosemary, thyme, sage, sea salt, and black pepper.
- Place the pork in a shallow dish and pour the marinade over the top. Coat the meat well and marinate for at least 30 minutes, or up to 8 hours in the refrigerator.
- Heat a cast iron or other oven-safe skillet over medium-high heat with a little olive oil.
- Remove the pork from the marinade and sear it in the skillet for 1 to 2 minutes per side, until browned all over and nicely caramelized.
- Pour any remaining marinade over the pork before placing the skillet in the oven.
- Roast for about 15 to 20 minutes, or until the internal temperature reaches 145°F at the thickest part.
- Remove from the oven and let the pork rest for 5 to 10 minutes before slicing.
Notes
- Heat the oven to 400°F.
- Slice the top off one head of garlic to expose the cloves.
- Drizzle with olive oil and wrap it in foil.
- Roast for 35 to 45 minutes, until soft and golden.
- Cool slightly, then squeeze the roasted garlic from the skins.
- You can tuck roasted garlic into the pork slits, spread it over the sliced pork, or serve it alongside the finished roast.