A 3-pound pork tenderloin—usually two or three tenderloins weighing 3 pounds altogether—takes about 22 to 30 minutes in a 400°F (205°C) oven after a quick sear. Because tenderloins vary in thickness, use a thermometer rather than the clock alone; this simple garlic-herb method makes juicy slices with a browned exterior.
Pork tenderloin is a lean, boneless cut, so it cooks much faster than the larger pork loin roast that is sometimes confused with it. The time below includes browning and roasting, with a short rest afterward; the final temperature, not the estimated minutes, tells you when it is ready.
Ingredients
- 3 lb (1.36 kg) pork tenderloin, typically 2 or 3 pieces; remove any silver skin
- 1 tbsp (15 ml) olive oil, plus 1 tsp (5 ml) for the pan if needed
- 1 tsp (6 g) fine salt
- ½ tsp (1 g) freshly ground black pepper
- 1 tsp (2 g) paprika
- 1 tsp (1 g) dried thyme
- 1 tsp (1 g) dried rosemary, crushed between your fingers
- 3 garlic cloves (about 9 g), finely minced
- 1 tbsp (15 ml) Dijon mustard
- 1 tbsp (15 ml) chopped fresh parsley (about 4 g), optional, for serving
Instructions
- Heat the oven and prepare the pork. Set a rack in the center of the oven and preheat it to 400°F (205°C). Pat the tenderloins dry with paper towels. If a thin, shiny strip of silver skin remains, slide a small sharp knife under it and trim it away; it does not soften during the short roast. Leave the tenderloins as separate pieces rather than tying them together, so heat can circulate and you can check each one individually.
- Season. Stir together the salt, pepper, paprika, thyme, and rosemary. Rub the pork with the tablespoon of olive oil and Dijon mustard, then coat it evenly with the seasoning mixture. Work the seasoning over the sides and ends as well as the top. If your tenderloins differ noticeably in thickness, remember which one is smaller; it may finish first. The mustard adds a mild tang and helps the dry seasonings adhere, but the pork will not taste strongly of mustard.
- Sear the tenderloins. Heat a large oven-safe skillet over medium-high heat. Add the remaining teaspoon of oil if the pan looks dry. When the oil shimmers, add the pork without crowding it. Brown the pieces for about 1 to 2 minutes on each side, turning with tongs, for roughly 6 to 8 minutes total. If they will not fit comfortably, sear in batches. Browning builds flavor, but it does not cook the centers through, so do not use the sear as a doneness test.
- Roast and check the temperature. If using an oven-safe skillet, transfer it to the oven. Otherwise, move the browned tenderloins to a shallow roasting pan or rimmed baking sheet. Roast for about 22 to 30 minutes, checking the thinner pieces first at around 20 minutes. Insert an instant-read thermometer lengthwise into the thickest part of each tenderloin, avoiding the pan. The USDA FSIS safe minimum for whole cuts of pork is 145°F (63°C), followed by at least a 3-minute rest. Remove each piece when its center reaches 145°F (63°C); do not wait for the meat to turn uniformly white, since a faint blush can remain at this safe temperature.
- Rest, slice, and serve. Transfer the pork to a clean cutting board and let it rest for 8 minutes. This exceeds the required 3-minute safety rest and gives the juices time to settle, making the slices less likely to lose moisture on the board. Slice across the grain into pieces about ½ inch (1.3 cm) thick. Spoon any juices from the pan over the slices and scatter with parsley if you like. If one tenderloin finishes before another, take it out and rest it separately rather than leaving it in the oven to dry out.
Tips
- Cook by temperature, not weight alone. A 3-pound total weight does not determine the roasting time as reliably as the thickness of each piece. Several narrow tenderloins may finish sooner than one thick piece, and pieces in the same pan can be done at different times. Check them separately, starting early; an oven thermometer can also help identify an oven that runs hot or cool.
- Do not confuse tenderloin with pork loin. Tenderloin is narrow and usually sold in smaller pieces. A 3-pound pork loin roast is much thicker and needs a different time estimate. If your roast is a broad, substantial loin rather than a narrow tenderloin, do not follow this recipe’s 22-to-30-minute oven range.
- Use substitutions thoughtfully. Swap the thyme and rosemary for 2 tsp (about 2 g) Italian seasoning, or use 1 tsp (2 g) smoked paprika in place of regular paprika for a smokier flavor. Fresh herbs can replace dried herbs, but use about three times as much by volume. If you do not have Dijon, omit it or use 1 tbsp (15 ml) neutral oil instead; the coating will be less tangy but will still take the seasoning.
- Keep the meat from drying out. Avoid piercing it repeatedly with a fork, pressing it in the pan, or leaving it in the oven while waiting for every piece to finish. Use clean tongs, a thermometer, and a clean board for cooked pork. If the pan drippings are browned but not burnt, a spoonful over the sliced meat adds flavor without needing a separate sauce.
Serving Suggestions
Serve the pork warm as the center of a simple dinner. Roasted potatoes, mashed potatoes, rice, or buttered noodles are good choices for catching the juices, while green beans, broccoli, or a crisp green salad balance the richness of the browned meat. For a fall-style plate, add roasted apples, carrots, or squash; their sweetness pairs naturally with the thyme and rosemary.
For a quick pan sauce, move the cooked pork to its resting board and carefully pour off excess fat, leaving the browned bits in the skillet. Set the skillet over medium heat, add ½ cup (120 ml) low-sodium chicken broth, and scrape the bottom with a wooden spoon as it simmers for 2 to 3 minutes. Turn off the heat and stir in 1 tbsp (14 g) butter, if desired. Taste before adding salt because the pork drippings and broth can already be seasoned. Serve the sauce alongside or over the sliced pork rather than pouring it on too early.
Variations
Lemon-garlic: Replace the paprika and dried herbs with 1 tsp (2 g) finely grated lemon zest and 1 tbsp (4 g) chopped fresh parsley; keep the garlic, salt, pepper, and oil. Add 1 tbsp (15 ml) lemon juice to the pan sauce after taking it off the heat. The result is brighter and less earthy.
Maple-mustard: Whisk 1 tbsp (15 ml) Dijon with 1 tbsp (15 ml) maple syrup and brush a thin layer on the pork during the final 5 minutes of roasting. Adding it near the end helps limit scorching from the sugars. Keep the thermometer check unchanged, and serve any extra mixture only if it has not touched raw pork.
Spiced version: Replace the thyme and rosemary with 1 tsp (2 g) ground cumin and ½ tsp (1 g) chili powder. This gives the pork a warm, mildly smoky flavor that works well with rice, beans, or a cabbage slaw. Adjust the chili to suit the people at the table.
Storage and Reheating
Refrigerate leftover pork within 2 hours of cooking, in a covered shallow container. It keeps for 3 to 4 days in the refrigerator. For easier reheating, store the slices with a little pan juice or broth so they do not dry out. Freeze portions in a well-sealed freezer-safe container for about 2 to 3 months for best quality; thaw them in the refrigerator rather than on the counter.
Reheat only the portion you plan to eat. Warm slices gently in a covered skillet over low heat with a tablespoon or two of broth or water, turning once, until the center reaches 165°F (74°C). You can also microwave them in a covered dish, checking the temperature in more than one spot because microwaves heat unevenly. Avoid high heat and prolonged reheating: tenderloin is lean, and extra cooking can make it firm. Do not rely on smell or appearance alone to judge how long stored leftovers are safe.
Frequently Asked Questions
How long does a 3-pound pork tenderloin take at 400°F?
After searing, plan on roughly 22 to 30 minutes in a 400°F (205°C) oven, or about 30 to 38 minutes of total cooking when the 6-to-8-minute sear is included. The range is an estimate: the thickness and starting temperature of the pieces, as well as the oven, affect the time. Check the thickest part of every piece with a thermometer and remove it at 145°F (63°C).
Can one pork tenderloin weigh 3 pounds?
Most pork tenderloins are smaller, so a package totaling 3 pounds usually contains more than one tenderloin. This method is written for that total weight. If you have a single unusually large tenderloin, rely on its thickest point reaching 145°F (63°C), and expect its shape and thickness to affect how long it takes.
Should I cover the pork while it roasts?
No cover is needed for this recipe. Roasting uncovered after searing helps the outside stay browned. Covering can trap steam and soften the surface; it is not a reliable way to prevent overcooking. The more important step is to check the internal temperature early and take each piece out as soon as it reaches the safe minimum.
Is pork tenderloin safe if it is a little pink inside?
Yes. Color is not a dependable safety test, and pork can remain slightly pink when it has reached the USDA FSIS minimum of 145°F (63°C) and received at least a 3-minute rest. Use a thermometer in the thickest part rather than cooking it until every slice looks gray or white, which can leave this lean cut dry.
Can I cook it without searing first?
Yes. Put the seasoned tenderloins directly into a roasting pan and begin checking the temperature early, since the total time will be shorter without the sear. The browned crust and savory pan bits will be less pronounced. The safe endpoint stays the same: 145°F (63°C), followed by at least a 3-minute rest.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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