How Long to Cook a 1 lb Pork Tenderloin in the Oven

A 1 lb pork tenderloin is a small, lean cut that cooks quickly and is easy to serve sliced with vegetables or a simple pan sauce. After a quick stovetop sear, roast it at 425°F (220°C) for about 14 minutes, then use a thermometer to confirm it reaches 145°F (63°C) and rest it for 5 minutes.

Ingredients

1 pork tenderloin, about 1 lb (454 g), silver skin removed if present
1 tbsp (15 ml) olive oil
¾ tsp (about 4.5 g) kosher salt
½ tsp (about 1 g) freshly ground black pepper
½ tsp (about 1.5 g) garlic powder
½ tsp (about 1 g) sweet paprika
1 tsp (5 g) Dijon mustard
1 tbsp (14 g) unsalted butter
⅓ cup (80 ml) low-sodium chicken broth
1 tsp (5 ml) apple cider vinegar
1 tbsp (about 4 g) chopped parsley, optional, for serving

Instructions

Heat the oven and prepare the pork. Set a rack in the middle of the oven and preheat it to 425°F (220°C). While it heats, pat the tenderloin thoroughly dry with paper towels. If a thin, shiny strip of silver skin remains, slide the tip of a small sharp knife underneath it and trim it away without cutting off much meat. Leave the tenderloin whole; cutting it into medallions before roasting changes the cooking time and makes it easier to overcook.
Season. Stir together the salt, pepper, garlic powder, and paprika. Rub the pork with the Dijon mustard, then coat it evenly with the seasoning. The mustard is a thin binder, not a strong mustard sauce; it helps the spices cling and adds a little tang. Let the seasoned pork sit on the counter only while you prepare the pan, about 2 to 3 minutes. There is no need to bring it fully to room temperature.
Sear the tenderloin. Heat the olive oil in an oven-safe skillet over medium-high heat until it shimmers. Add the pork and sear for about 1½ minutes on each of its two broad sides, then turn it to brown the narrower sides for about 1 minute total. Aim for roughly 5 to 6 minutes of searing altogether, turning with tongs. A browned exterior adds flavor, but the pork does not need to cook through on the stovetop. If you do not have an oven-safe skillet, transfer the seared pork to a small roasting pan.
Roast and check the temperature. Put the skillet in the oven and roast for about 14 minutes, turning the tenderloin once halfway through if one side is noticeably thicker or browning more. Start checking the thickest part with an instant-read food thermometer at about 10 minutes; a narrow tenderloin or a hot skillet may finish sooner, while a thicker piece may take longer. USDA FSIS lists 145°F (63°C), followed by a 3-minute rest, as the safe minimum internal temperature for whole cuts of pork. If the center is below 145°F (63°C), return the pan to the oven and check again after 2 to 3 minutes. Do not judge doneness by color alone.
Rest the pork and make the quick pan sauce. Transfer the pork to a clean plate or cutting board and rest it for 5 minutes; this is longer than the USDA FSIS minimum rest and gives the juices time to settle. While it rests, carefully set the hot skillet over medium heat. Add the broth and vinegar, scraping up browned bits with a wooden spoon. Simmer for 2 to 3 minutes, then turn off the heat and swirl in the butter. Taste before adding more salt, since the seasoning and broth already contribute salt.
Slice and serve. Cut the tenderloin crosswise into slices about ½ inch (1.3 cm) thick. Pour a little sauce over the slices or serve it at the table, and finish with parsley if you like. The stated 25-minute cook time counts approximately 6 minutes of searing, 14 minutes in the oven, and the 5-minute rest; actual oven time depends on the tenderloin’s thickness and starting temperature. The 12-minute prep estimate assumes you trim and season while the oven heats, so the total is about 37 minutes when those tasks overlap.

Tips

Check what cut you bought. Pork tenderloin is a narrow, boneless muscle that commonly weighs around 1 lb. Pork loin is a much larger, wider cut and needs a different cooking plan. If your package contains two small tenderloins that total 1 lb, they may cook faster than one whole piece, so check each one separately.
Use a thermometer in the thickest point. Insert the probe from the side toward the center so the tip measures the middle rather than the hot pan or a thin edge. A few degrees make a meaningful difference with such a lean cut. Pull it from the oven when the center reaches 145°F (63°C), and allow the stated rest; avoid cooking it until it is uniformly gray and firm.
Adapt the seasoning to your pantry. Smoked paprika can replace sweet paprika for a more pronounced smoky note. If you do not have Dijon, use 1 tsp (5 g) yellow mustard; it is sharper and less wine-like, but still helps the spices stick. If using fine table salt instead of kosher salt, use a little less by volume because fine crystals pack more tightly.
Keep the sear controlled. Dry meat browns more effectively than wet meat, and a properly heated pan helps color develop without prolonging cooking. If the oil smokes heavily, lower the heat slightly. Avoid crowding the pan with other ingredients; they release moisture and can prevent the pork from browning.

Serving Suggestions

Serve the sliced pork while it is warm, with the pan sauce spooned over or alongside it. Roasted potatoes, mashed potatoes, rice, or buttered egg noodles are useful sides for catching the sauce. For vegetables, choose something that can roast or cook while the pork rests, such as broccoli, carrots, green beans, or Brussels sprouts. A crisp salad with an acidic vinaigrette also balances the rich browned flavor without requiring another heavy side.

For a simple meal timed around the short roasting window, start potatoes or sturdy vegetables first, since they often need longer in the oven. The pork can roast at 425°F (220°C) alongside vegetables if they fit without crowding, though vegetables may need additional time after the meat comes out. Resting the tenderloin gives you a few minutes to finish a side dish or warm plates. Cut across the grain into even slices so each serving is easy to eat, and spoon sauce over only what you plan to serve immediately if you want leftovers to keep well.

Variations

Herb and lemon: Replace the paprika with ½ tsp (about 0.5 g) dried thyme and add 1 tsp (2 g) finely grated lemon zest to the seasoning. Finish the sauce with a small squeeze of lemon instead of the vinegar. The result is brighter and more herbal, while the searing and thermometer method stay the same.

Maple-mustard glaze: Mix 1 tbsp (15 ml) maple syrup with the 1 tsp (5 g) Dijon and brush it over the pork during the final 3 to 4 minutes of roasting. Do not apply the syrup at the beginning because it can darken or burn in the hot oven. Keep checking the meat’s center temperature rather than using the glaze’s color to judge doneness.

Garlic and rosemary: Add ½ tsp (about 0.5 g) dried rosemary to the spice mix, or use 1 tsp (about 1 g) finely chopped fresh rosemary. Stir 1 small minced garlic clove into the pan sauce after removing the pork, cook it briefly for about 30 seconds, and then add the broth. The fresh garlic gives the sauce a more assertive flavor; keep it moving so it does not scorch.

No pan sauce: The tenderloin is also good with the seasoning alone. If you want to skip the sauce, use a rimmed roasting pan or oven-safe skillet and serve the meat with a squeeze of lemon or a spoonful of prepared chutney. A fruit chutney adds sweetness and acidity, while a plain pan roast keeps the seasoning simple. None of these serving changes affect the internal temperature target.

Storage and Reheating

Refrigerate cooked pork within 2 hours of cooking, storing it in a shallow, airtight container with any remaining sauce. Properly chilled cooked pork keeps for 3 to 4 days in the refrigerator. For longer storage, freeze sliced or unsliced portions in a freezer-safe container for about 2 to 3 months for best quality; thaw them in the refrigerator rather than on the counter. Label the container with the date so you can use older portions first.

To reheat, place slices in a covered skillet with a spoonful or two of broth or pan sauce and warm gently over low heat until steaming. You can also microwave a covered portion in short bursts, turning or rearranging the slices between bursts so they warm evenly. USDA FSIS guidance is to reheat leftovers to 165°F (74°C), checked with a food thermometer. Because tenderloin is lean, added moisture and gentle heating help limit dryness; avoid repeatedly reheating the entire batch. Reheat only the portion you plan to eat.

Frequently Asked Questions

How long does a 1 lb pork tenderloin take at 425°F?
After searing, plan on roughly 12 to 16 minutes in a 425°F (220°C) oven for a typical 1 lb tenderloin, then rest it for at least 3 minutes; this recipe rests it for 5. The oven estimate is a starting point, not a doneness test. Shape, thickness, pan temperature, and whether the pork is very cold can all change the time. Use a thermometer and cook to 145°F (63°C) in the thickest part.

Can I cook it without searing first?
Yes. Put the seasoned tenderloin in a roasting pan and roast at 425°F (220°C), checking the center temperature early and often. Without searing, the surface will be less browned and the finished flavor less rich, but the meat can still be tender. The oven time may differ from the seared version, so do not simply assume it needs the same number of minutes. Cook to 145°F (63°C), then rest.

Should pork tenderloin be pink in the middle?
It can be slightly pink and still be safely cooked. The reliable measure is 145°F (63°C) at the center followed by a 3-minute rest, not whether every slice looks white or gray. Color varies with the meat and cooking method. If a slice looks pink but the thermometer confirmed the target temperature and rest, color alone is not a reason to cook the whole tenderloin longer.

Do I need to cover the pork while it roasts?
No. Leave it uncovered so the surface can brown. Covering the pan traps steam and tends to soften the seared exterior. If the outside is getting darker than you want before the center reaches 145°F (63°C), loosely tent the handle or pan area with foil if practical, then continue checking the meat with a thermometer. Let the pork rest uncovered or very loosely tented so steam does not make the crust soggy.

Can I prepare the tenderloin ahead of time?
You can trim and season it several hours ahead, cover it, and keep it refrigerated until cooking. For best browning, pat away any moisture that has collected on the surface before searing. Do not leave raw pork at room temperature while waiting for dinner; take it out only while the oven and pan are getting ready. If you have cooked leftovers, refrigerate them within 2 hours and use them within 3 to 4 days.

What if my tenderloin is larger or smaller than 1 lb?
Weight is a useful guide, but thickness is what most affects how quickly the center heats. For a smaller or especially thin tenderloin, begin checking earlier than the recipe suggests. A thicker piece may need extra oven time, checked in short intervals. If the package contains two tenderloins, their different shapes can mean they finish at different times. Remove each piece when its own center reaches 145°F (63°C), and rest it for at least 3 minutes.

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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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