This Mexican-inspired pork tenderloin is coated in a bright orange-and-lime marinade with ancho chile, garlic, cumin, and oregano, then seared and oven-roasted until juicy. It is sliced for tacos, rice bowls, or a simple dinner; chile and citrus combinations vary across Mexican and Mexican-American cooking, so this recipe is one flavorful version rather than a single traditional standard.
Ingredients
- 1 pork tenderloin, about 1½ lb (680 g), silver skin trimmed
- ⅓ cup (80 ml) fresh orange juice
- 2 tbsp (30 ml) fresh lime juice
- 2 tbsp (30 ml) neutral oil, such as avocado or canola oil, divided
- 3 garlic cloves (about 9 g), finely grated or minced
- 1 tbsp (7 g) ancho chile powder
- 1 tsp (2 g) ground cumin
- 1 tsp (1 g) dried Mexican oregano, or regular dried oregano
- ½ tsp (1 g) smoked paprika
- ½ tsp (1 g) ground coriander
- 1 tsp (6 g) fine salt
- ½ tsp (1 g) freshly ground black pepper
- 1 tsp (7 g) honey, optional, to soften the citrus edge
- ⅓ cup (80 ml) low-sodium chicken broth or water, for the quick pan sauce
- ¼ cup (15 g) chopped fresh cilantro, for serving
- 1 lime, cut into wedges (about 60 g), for serving
Instructions
- Trim and mix the marinade. Pat the tenderloin dry and remove any silvery membrane with a small sharp knife; leaving it on can make the finished meat chewy. In a small bowl, whisk the orange juice, lime juice, 1 tablespoon (15 ml) of the oil, garlic, ancho chile powder, cumin, oregano, smoked paprika, coriander, salt, pepper, and honey if using. Before the pork goes near the mixture, transfer 2 tablespoons (30 ml) of the marinade to a separate clean cup and refrigerate it for the pan sauce. This reserved portion must stay separate from the raw pork.
- Marinate the pork. Put the tenderloin in a shallow dish or a sealable food-safe bag and pour the remaining marinade over it. Turn the meat to coat, cover or seal, and refrigerate for 30 minutes. That short rest gives the surface time to take on the citrus and spices without leaving the tenderloin in acidic juice for so long that its exterior turns soft. Use the marinating time to measure the broth and prepare any sides.
- Heat the oven and pan. During the last 10 minutes of marinating, heat the oven to 425°F (220°C). Lift the pork from the marinade and let excess drip back into the dish; discard the marinade that touched the raw meat. Heat the remaining 1 tablespoon (15 ml) oil in a large oven-safe skillet over medium-high heat. If you do not have an oven-safe skillet, use a regular skillet for searing and transfer the pork to a small roasting pan.
- Sear, then roast. Sear the tenderloin for about 2 minutes on each side, turning with tongs until several sides are browned; the goal is color, not a fully cooked center. Transfer the skillet to the oven and roast for about 14–18 minutes, depending on the tenderloin’s thickness. Begin checking the thickest part with an instant-read food thermometer after 12 minutes in the oven. USDA FSIS guidance sets the safe minimum for a whole cut of pork at 145°F (63°C), followed by a 3-minute rest; cook longer in short increments if needed rather than judging doneness by color alone.
- Rest the meat and make the sauce. Move the pork to a clean cutting board and rest it for 3 minutes. While it rests, set the skillet over medium heat, carefully pour in the broth and the reserved 2 tablespoons of marinade, and scrape up the browned bits with a wooden spoon. Bring the liquid to a steady simmer for 2–3 minutes, stirring, until hot and slightly reduced. If you used a separate roasting pan, make the sauce in the skillet used to sear the meat. Do not add the marinade that was in contact with raw pork.
- Slice and serve. Cut the tenderloin across the grain into slices about ½ inch (1.3 cm) thick. Spoon a little warm pan sauce over the slices, scatter cilantro on top, and serve with lime wedges. If the tenderloin is noticeably tapered, the narrow end may be more cooked; slice it slightly thicker and keep it under the sauce so it stays pleasant to eat.
Tips
- Choose tenderloin, not pork loin. They are different cuts: tenderloin is long and narrow and cooks quickly, while a larger loin roast needs more time. If your package contains two small tenderloins, cook them side by side and check each one separately because their thicknesses may differ.
- Keep the citrus time moderate. Thirty minutes is enough for this marinade. You can leave the pork refrigerated for up to about 2 hours, but a long soak is not necessary and may make the surface of the meat soft. Do not marinate it on the counter.
- Adjust the chile thoughtfully. Ancho chile powder is dried poblano and usually brings a mild, fruity warmth. If it is unavailable, use ordinary mild chile powder; the flavor will be less fruity and may be saltier if the blend includes salt, so check its label before seasoning. For more heat, add a pinch of cayenne rather than replacing all the ancho.
- Use a thermometer and a suitable pan. Tenderloin is lean, so extra cooking can dry it out. Check the center of the thickest part, and remember the required 3-minute rest after it reaches 145°F (63°C). If the skillet handle is not oven-safe, transfer the pork before roasting.
Serving Suggestions
For tacos, tuck warm slices into corn or flour tortillas with finely shredded cabbage, diced onion, cilantro, and a squeeze of lime. A spoonful of salsa verde, fresh tomato salsa, or creamy avocado salsa adds moisture and contrast. Keep toppings simple enough that the chile-citrus seasoning remains noticeable, and warm tortillas just before serving so they bend without cracking.
For a plate or bowl, serve the pork with rice, black or pinto beans, and a crisp salad of cabbage, radishes, and lime. Roasted peppers, sautéed zucchini, or corn are easy vegetable sides. The pan sauce is concentrated and salty enough to season a bowl in small amounts, so taste it before spooning on more. For a larger meal, set out the sliced pork and toppings separately and let everyone build tacos or bowls at the table.
Variations
Use another dried chile. Guajillo chile powder can stand in for ancho for a brighter, slightly tangier chile flavor. If you have whole dried guajillos rather than powder, remove the stems and seeds, soak the chiles in hot water until pliable, then blend a small amount with the citrus and garlic. Start with one or two chiles, since their size and heat vary. The texture of the marinade will be less smooth, but it will still coat the meat.
Make it smoky or more gently spiced. For a deeper grilled-style aroma in an oven-cooked version, increase the smoked paprika to 1 teaspoon (2 g). For a milder family-style meal, leave out the paprika and use 2 teaspoons (5 g) of ancho instead of 1 tablespoon, then offer hot salsa at the table. These changes alter the balance but keep the orange, lime, and cumin profile.
Finish with a fresh salsa. Top the sliced pork with diced pineapple, red onion, cilantro, and lime for a sweet-tart contrast, or use chopped tomato, onion, and jalapeño for a fresher, sharper topping. These are serving additions rather than part of the marinade, so add them after cooking. If using jalapeño, remove its seeds and pale ribs for less heat, or leave some in for a hotter garnish.
Storage and Reheating
Refrigerate cooked pork within 2 hours of cooking, in a covered airtight container. It keeps for 3–4 days in the refrigerator. Store the sauce separately if possible, which makes it easier to reheat the meat without overcooking it. For longer storage, freeze tightly wrapped portions for up to 2–3 months for best quality; thaw them in the refrigerator rather than on the counter.
To reheat, place slices in a covered skillet with a splash of broth or water and warm gently over low heat, turning once. You can also microwave a portion in a covered dish in short intervals, stirring or rearranging the slices between intervals. Reheat leftovers to 165°F (74°C), checking with a food thermometer, and avoid repeated reheating of the whole batch. The pork is also good cold in a sandwich or salad if it has been kept refrigerated safely.
Frequently Asked Questions
Can I make this recipe without an oven-safe skillet?
Yes. Sear the pork in any heavy skillet, then move it to a small roasting pan or baking dish for the oven. Make the sauce in the original skillet afterward, adding the reserved marinade and broth to lift up the browned bits. Do not put a skillet with a plastic or otherwise non-oven-safe handle in the oven.
Can I grill the tenderloin instead?
Yes. Prepare the marinade and marinating time as directed, then grill the pork over medium-high heat, turning it to brown all sides. Move it to a cooler part of the grill if the outside is darkening before the center is cooked. Use a thermometer in the thickest section and follow the same 145°F (63°C) minimum and 3-minute rest. Make the sauce separately in a saucepan, using only the clean reserved marinade and broth.
Is it okay to marinate the pork overnight?
Overnight marinating is not the best fit for this citrus-based recipe. The acidity can soften the outside of the tenderloin if it sits too long, while the short 30-minute rest is enough to season the surface. If you need to get ahead, mix the marinade and trim the pork earlier, but keep them separate until roughly 30 minutes before cooking.
How can I tell if the tenderloin is done without cutting it open?
Use an instant-read thermometer inserted sideways into the thickest part of the meat, keeping the tip away from the skillet. The USDA FSIS safe minimum is 145°F (63°C) for whole cuts of pork, followed by a 3-minute rest. A slight blush in properly cooked pork is not by itself a reason to keep roasting; temperature is the reliable check.
Can I prepare the pork ahead for tacos?
Cook it up to a day ahead, cool and refrigerate it promptly, then slice it shortly before serving or store it already sliced with its juices. Reheat gently with a little broth so the lean slices do not dry out, and bring leftovers to 165°F (74°C). For the freshest texture, prepare the cilantro, cabbage, and other toppings close to serving time.
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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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