Pork Kumquat Tenderloin Recipe with Citrus Pan Sauce

This pork kumquat tenderloin pairs roasted pork with a glossy pan sauce made from tart kumquats, orange juice, honey, and a little soy sauce. The tenderloin cooks quickly, while the fruit’s fragrant peel and sharp juice balance the savory, lightly sweet sauce; serve it sliced with rice, potatoes, or vegetables.

Ingredients

1 pork tenderloin, about 1¼ lb (570 g), silver skin removed
1 tsp kosher salt (5 g)
½ tsp freshly ground black pepper (1 g)
1 tbsp neutral oil, such as canola or avocado oil (15 ml)
8 oz kumquats (225 g), rinsed, sliced into thin rounds, and seeded
1 small shallot, finely chopped, about ¼ cup (35 g)
1 garlic clove, finely chopped, about 1 tsp (3 g)
½ cup low-sodium chicken broth (120 ml)
¼ cup fresh orange juice (60 ml)
2 tbsp honey (30 ml)
1 tbsp soy sauce (15 ml)
1 tsp Dijon mustard (5 g)
1 tbsp unsalted butter (14 g)
1 tbsp chopped fresh parsley (4 g), for serving

Instructions

Heat the oven and prepare the pork. Set a rack in the center of the oven and preheat it to 425°F (220°C). Pat the tenderloin dry with paper towels. If a thin, shiny strip of silver skin remains, slide a small sharp knife underneath it and trim it away without cutting off much meat. Season the pork evenly with the salt and pepper. Let it sit at room temperature while you slice and seed the kumquats and chop the shallot and garlic; do not leave raw pork out for more than two hours.
Brown the tenderloin. Heat the oil in a large oven-safe skillet over medium-high heat until it shimmers. Add the pork and sear it for about 6 minutes, turning every minute or two so that several sides develop a golden-brown crust. Use tongs rather than piercing the meat. If your skillet is not oven-safe, transfer the browned tenderloin to a small roasting pan.
Roast to temperature. Move the skillet or roasting pan to the oven. Roast for about 13–16 minutes, turning the tenderloin once if one side is browning much faster. Cooking time varies with the tenderloin’s thickness, so check the thickest section with an instant-read food thermometer. USDA FSIS safe minimum for a whole cut of pork is 145°F (63°C), followed by a 3-minute rest; remove it from the oven when it reaches that temperature, not when a timer alone says it is done.
Make the kumquat sauce while the pork rests. Transfer the cooked pork to a clean cutting board and rest it for at least 3 minutes. Carefully place the hot skillet on the stovetop over medium heat. Add the shallot and cook for about 1 minute, stirring and scraping up browned bits. Add the garlic and sliced kumquats and cook for 1 minute more. Pour in the broth and orange juice, then stir in the honey, soy sauce, and Dijon. Simmer for 3–5 minutes, stirring, until the kumquat slices soften and the liquid reduces slightly. Turn off the heat and stir in the butter. If the pork’s resting time ends while the sauce is still reducing, keep the meat on the board; do not leave it in the hot pan, where it can overcook.
Slice and serve. Cut the tenderloin across the grain into slices about ½ inch (1.3 cm) thick. Arrange them on a warm platter, spoon the kumquat sauce and fruit over the top, and finish with parsley. Taste the sauce before serving: add a teaspoon of water if it seems too concentrated, or a small squeeze of orange juice if you want a brighter finish.

Tips

Choose firm, bright fruit. Look for kumquats with smooth, unwrinkled orange skins and no soft spots. Rinse them well, slice them crosswise, and pick out visible seeds; the peel is edible and contributes much of the fruit’s sweet fragrance. Very large kumquats can be quartered before slicing so the pieces are easy to eat.
Use temperature, not color, as your guide. Pork tenderloin is lean and can dry out if it stays in the oven too long. Check the thickest part with a thermometer, and insert the probe from the side if the tenderloin is narrow. The required 3-minute rest is part of the USDA FSIS guidance for whole cuts of pork.
Adjust the sauce thoughtfully. Kumquats differ in tartness and the amount of juice they release. If the sauce tastes too sharp, stir in a little more honey; if it is too sweet, add a splash of broth or orange juice. Soy sauce adds salt, so taste before adding any extra seasoning.
Keep the pan manageable. A skillet about 10–12 inches (25–30 cm) wide gives the tenderloin room to brown. If you only have a smaller pan, brown the meat in batches of its sides or use a separate roasting pan after searing rather than crowding it and steaming the surface.

Serving Suggestions

Serve the sliced pork with a starch that can catch the citrus sauce. Steamed jasmine or basmati rice is an easy choice; mashed potatoes, roasted baby potatoes, or buttered couscous also work well. For a lighter plate, pair it with simply dressed greens, sautéed green beans, roasted carrots, or broccoli. Keep the side dishes fairly restrained so the kumquat sauce remains the main bright, tangy flavor.

For a dinner platter, fan the slices slightly and spoon some sauce over them, then put any remaining sauce in a small bowl at the table. A few fresh parsley leaves add color without competing with the fruit. If serving family-style, slice the pork just before it reaches the table so it stays warm and juicy. The recipe makes four moderate portions; add another side dish or increase the rice or vegetables if serving especially hungry guests.

Variations

No kumquats? Use 1 medium orange (about 180 g) and 1 tbsp lemon juice (15 ml). Add a little finely grated orange zest to the sauce, and cut the orange flesh into small pieces. This substitute is sweeter and less peel-forward than kumquats, while the lemon restores some tartness. If you can find calamansi, use about ½ cup (120 ml) juice in place of the orange juice and kumquats, then add honey gradually because calamansi can be quite sharp.

Make it ginger-forward. Add 1 tsp freshly grated ginger (2 g) with the garlic. For a gentle warm note, add a pinch of red pepper flakes with the broth. If you like a more savory sauce, replace the honey with 1 tbsp brown sugar (12 g), understanding that it will taste a little deeper and less floral. Use low-sodium broth and soy sauce so the sauce does not become overly salty as it reduces.

Cook it without an oven-safe skillet. Brown the tenderloin in a regular skillet, then transfer it to a roasting pan to finish in the oven. Make the sauce in the original skillet, following the same steps and scraping up its browned bits. The method and temperature remain the same; use a thermometer to decide when the pork is done. Avoid adding the raw tenderloin directly to the sauce to finish cooking, because it makes browning harder to control and can leave the sauce watery.

Storage and Reheating

Refrigerate leftover pork and sauce within 2 hours of cooking. Store them in a covered, shallow container, ideally with the sliced pork lightly coated in sauce so it does not dry out. They keep for 3–4 days in the refrigerator. You can also freeze them in an airtight freezer-safe container for about 2–3 months for best quality; thaw overnight in the refrigerator before reheating. Kumquat slices soften further after storage, but the sauce remains suitable for spooning over the meat.

Reheat only the portion you plan to eat. Warm the pork and sauce gently in a covered skillet over low heat, adding a spoonful of broth or water if the sauce has thickened. Stir and turn the slices so they heat evenly, and check that leftovers reach 165°F (74°C), the USDA FSIS temperature for reheated leftovers. A microwave also works: cover the dish, heat in short intervals, and turn the slices between intervals to reduce cold spots. Avoid prolonged high heat, which can make lean tenderloin tough.

Frequently Asked Questions

Do I need to peel kumquats before cooking?
No. Kumquats are typically eaten with their peel, and the rind provides a sweet, aromatic note that helps balance the tart flesh. Wash the fruit, slice it thinly, and remove the seeds you can see. If you prefer a gentler peel flavor, use fewer slices or simmer the sauce for less time.

Can I make the kumquat sauce ahead?
Yes. Make the sauce up to 3 days in advance and refrigerate it in a covered container. Rewarm it gently in a small saucepan with a splash of broth or water, then cook the pork fresh for the best texture. If preparing the full meal ahead, store the pork and sauce promptly in the refrigerator and reheat the leftovers to 165°F (74°C).

Can I use pork loin instead of tenderloin?
They are different cuts and are not a direct timing swap. Pork loin is wider and usually takes longer to roast, while tenderloin is narrow and cooks quickly. You can serve the same sauce with pork loin, but use a thermometer and allow for the larger cut’s cooking time rather than following the tenderloin’s 13–16-minute estimate.

What if the sauce is too tart or too thin?
For excess tartness, stir in honey a teaspoon at a time and taste after each addition. For a sauce that is too thin, simmer it for another minute or two before adding the butter; it will thicken slightly as it reduces. If it becomes too concentrated, loosen it with a tablespoon of broth or water. Avoid a long boil after adding butter, which can make the sauce look greasy.

Can I prepare the pork in advance?
You can trim and season the tenderloin up to a day ahead, then cover and refrigerate it. Keep it separate from the sliced kumquats and sauce ingredients, and return the meat to the refrigerator if prep is delayed. For the most even browning, pat the surface dry before searing. Do not leave raw pork at room temperature while waiting for guests or other dishes to finish.

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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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