Confit Duck Leg
Salt. Fat. Time. The French knew what they were doing.
Confit is one of the great preservation tricks turned into one of the great textures. Salt-cure the duck, cook it gently submerged in its own fat at a temperature that never boils, and you end up with meat that pulls clean off the bone, skin that crisps under heat like nothing else, and a sealed jar that keeps for weeks in the fridge. Two days of barely-there work for one of the most generous things you can keep in a fridge.
Confit is salt and fat doing two different jobs at two different stages. The cure pulls water out of the meat and seasons it through. The fat bath then cooks it submerged at a temperature low enough that the muscle fibres never seize — they relax, the collagen melts to gelatin, and the fat seals out air. The crisp at the end is a separate, fast move: dry heat on a fat-coated skin that's been resting in a fridge.
- →Salt cure first, always. The overnight rub draws moisture from the skin and seasons the meat from the outside in. Skip it and the confit tastes flat no matter how long it sits in fat — you cannot season into duck that's already submerged.
- →Below ~90°C the muscle fibres stay relaxed. The fat bath holds the meat at a temperature that gently melts connective tissue into gelatin without squeezing the juices out. A rolling poach would dry the meat and emulsify the fat the wrong way; a bare tremble for three hours gives you the texture you came for.
- →The fat is a seal, not a flavour. Duck fat is mostly inert during the cook — its job is to exclude air, hold even heat, and protect the meat in storage. The flavour is the cured duck itself plus the aromatics in the cure. Reuse the fat two or three times; each round picks up more duck character.
- →Cold confit crisps better than warm. A rested, fridge-cold leg with skin patted dry gives you a crisp under broiler or pan heat that's almost impossible from a leg straight out of the fat. The skin needs to firm up before it can shatter.
- →Storage works because of the seal. A confit leg submerged in its setting fat in a clean jar, fat covering it completely, keeps in the fridge for two to four weeks and tastes better at week two than day one. Break the seal — fat below the meatline, leg exposed — and you've turned a preserve back into leftovers.
Common Mistakes
- ✗Skipping the cure to save a day. You can't. The cure isn't a flavour booster — it's what makes confit confit. An uncured leg cooked in fat is just slow-poached duck, and it tastes like it.
- ✗Cooking the fat too hot. The oven is set to 120°C, but the fat bath should remain at a bare shimmer rather than bubbling. The oven temperature is the ambient heat, not the target temperature of the fat.
- ✗Transfer the cooked legs to a clean container, cover completely with warm, thoroughly strained fat, cool promptly, then refrigerate below 5°C.
- ✗Crisping the skin straight from the fat. Wet, fat-slick skin steams before it crisps. Lift the leg out, scrape excess fat back into the jar, and let it sit on a rack in the fridge for at least an hour — ideally overnight — before the crisping move.
Tips & Tricks
- →Going into cassoulet? Skip the final crisping step — the breadcrumb crust crisps the skin from above inside the oven build. Just warm them through and nestle skin-up into the pot for the last 90 minutes.
- →Use the smallest ovenproof dish that holds the legs snugly in a single layer. Less empty space means less duck fat is needed to keep them completely submerged.
- →Buy fresh, skin-on, bone-in duck Marylands from a good butcher or Asian grocer. Choose plump legs with intact skin and a good covering of fat.
Flavour Twists
Add the zest of one orange and 2 star anise pods to the cure. Leans the finished duck toward duck à l'orange territory — works beautifully shredded over a bitter-leaf salad with orange segments.
Replace 10 g of the 20 g curing salt with 10 g smoked salt. Weigh both salts; do not substitute by volume. The smoke note carries through the fat bath and the finished duck reads faintly barbecued.
The recipe already includes two halved garlic bulbs. Once cooked, squeeze out the sweet, soft cloves and spread them on toast, mash them through potatoes or use them to make a confit-garlic aioli. Want extra? Add two additional whole, unpeeled garlic bulbs to the fat bath alongside the duck. They will cook gently until soft and spreadable, giving you more confit garlic to use afterward. If storing them with the duck, keep them fully submerged beneath the intact fat seal. Once removed, use them promptly.
Substitutions
- Duck Marylands→ Chicken Marylands (bone-in, skin-on).Use the same cure and rendered animal fat. Reduce the cooking time to around 2 hours, checking from 90 minutes and continuing until completely tender. Cool promptly and refrigerate fully submerged beneath the set fat. Storage depends on the cure, cooking, cooling and intact fat seal—not on the chicken's own fat.
- Duck fat→ Goose fat.Goose fat is the closest proper substitute. If neither duck nor goose fat is available, use another cooking method. Olive oil is not a substitute for this recipe.
- Salt for the cure→ Kosher salt or fine sea salt, measured by weight.Use an everyday workhorse salt for curing. Crystal sizes vary, so don't convert different salts by volume. Finishing salt belongs only on the crisped duck immediately before serving.
Properly cured and cooked duck legs, completely submerged beneath an unbroken, set layer of duck or goose fat, will keep for 2–4 weeks in the refrigerator. Keep below 5°C and ensure no meat is exposed above the fat. Once the seal is broken or a leg is removed, use the exposed duck within 3 days. Thoroughly strain any rendered fat you want to keep, removing meat juices and solids, then refrigerate it in a clean airtight container for 1–3 months or freeze it for longer storage.
Confit is a salt-and-aromatic dish, not a spiced one. The cure carries thyme, rosemary, bay, garlic, ginger, cinnamon and pepper into the meat without overpowering the duck. Resist five-spice, juniper, cloves, or anything that pulls it toward sausage or game. The point is a clean, savoury duck flavour that can sit inside cassoulet without arguing with the beans, or on a plate next to fat-roasted potatoes without needing anything else.
Sharp greens and warm bread
A bitter green salad or quick vegetables on the side give lift, while warm bread catches any sauce left on the plate.
Salt. Fat. Low heat. Time. The rest is just patience.
Method
- 1
Day 1 — cure the duck
Rub the duck Marylands all over with the measured curing salt — over and under the skin and into the joint. Lay them skin-up in a non-reactive dish along with the halved garlic bulbs, ginger coins, thyme, rosemary, cinnamon sticks, bay leaves and crushed peppercorns. Tuck the aromatics around and under the legs so they sit in contact with the meat. Cover and fridge 12–24 hours to enhance the flavour. Don't go longer than 24 — too much cure and the confit reads as cured ham instead of confit duck.
- 2
Day 2 — confit
Pre-heat oven to 120°C / 250°F. Transfer the duck and all the aromatics into a snug oven-safe dish — Dutch oven, deep ceramic, cast-iron casserole — skin-side up, making sure the legs fit without overlapping. Pour off any excess liquid that's pooled in the dish. Pour over melted duck fat until the legs are fully submerged (if the duck fat is solid, melt it first then pour over). Cover tightly with a lid or foil. Into the oven for 3–3½ hours, until the meat is tender and pulls away from the bone easily. The fat should never bubble harder than a lazy shimmer on top — if it's rolling, the oven's too hot, drop it 10°C.
- 3
Finish and serve
Carefully lift the legs out of the fat and rest them on a wire rack to drain. For an optional crispy skin texture (worth doing), heat a dry skillet over medium-high and sear the legs skin-side down for 6–8 minutes until the skin is mahogany and shattering — the rendered duck fat on the skin is your oil, no extra needed. Flip 2 minutes flesh-side to warm through. Rest 5 minutes, flaky salt, serve hot alongside roasted vegetables, salad, or mashed potatoes.
- 4
Cool and store (if not eating now)
Transfer the cooked legs to a clean container, cover completely with warm, thoroughly strained fat, cool promptly, then refrigerate below 5°C. With the fat seal intact and no meat exposed, keep refrigerated for 2–4 weeks. Once the seal is broken or a leg is removed, use the exposed duck within 3 days. The drained fat can be saved separately in a clean airtight container and kept refrigerated for 1–3 months.
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