Confit is cooking food submerged in fat at low temperature — 85–95°C — for an extended period. Originally a preservation technique from southwest France where meat was cooked and stored under a seal of its own solidified fat, remaining edible for months without refrigeration. Now valued for the extraordinary texture it produces: duck confit legs where the meat is so tender it falls from the bone with the gentle pressure of a fork, and the skin — when finished in a hot pan — crisps to a glass-like shell that shatters audibly when bitten. The low temperature means muscle proteins never contract enough to squeeze out moisture. The fat surrounds everything. The result is impossibly tender, impossibly moist, impossibly rich.
Quality hierarchy: 1) The cure — confit begins 24–48 hours before cooking. The protein (duck legs, pork belly, tuna, garlic) is coated generously with salt plus aromatics (thyme, bay leaf, garlic, black pepper, sometimes juniper or orange zest). The salt draws moisture out of the surface, seasons the meat deeply through diffusion, and changes the protein structure so it retains MORE moisture during cooking. The cure is NON-NEGOTIABLE — skip it and you have slow-poached meat in fat, not confit. Different product, different texture. 2) Rinse and dry — after curing, rinse the salt off completely (leaving it on makes the confit too salty) and pat dry. 3) Fat selection — duck fat for duck. Pork fat (lard) for pork. Olive oil for fish, garlic, and vegetables. The fat must completely submerge the protein — every surface must be covered. Exposed surfaces cook differently and can develop off-textures. 4) Temperature — 85–95°C in the fat. This is critical. Below 80°C, collagen doesn't convert efficiently. Above 100°C, you're frying — muscle fibres contract, moisture is expelled, and you get tough, dry meat. At 85–95°C, the collagen converts to gelatin slowly and gently, the muscle fibres relax rather than contract, and the fat bastes every surface continuously. An oven set to 120–140°C typically produces a fat temperature of 85–95°C. Check with a thermometer in the fat, not the oven. 5) Time — duck legs: 3–4 hours. Pork belly: 4–6 hours. Garlic: 2 hours. Tuna: 25 minutes. The protein is done when a skewer slides through with zero resistance. 6) The finishing sear — confit straight from the fat is tender but pale and soft. The magic comes from the contrast: pull from fat, skin side down in a medium-heat pan, 8–10 minutes until the skin is deep mahogany and sounds hollow when tapped. The tender interior against the shatteringly crisp exterior is the complete dish.
Duck confit legs in full: cure 24 hours with salt, thyme, bay, garlic, pepper. Rinse. Dry. Submerge in duck fat in a Dutch oven. Cover. Oven at 130°C for 3–4 hours until a skewer slides through the thigh with zero resistance. Cool in the fat. Store in the fat in the fridge for up to a month — the flavour improves over days. To serve: pull from fat, skin side down in a cold pan (cold start, like rendering), medium heat, 10 minutes until the skin is glass-crisp. Do not flip — the flesh side just needs to warm through, which the conducted heat from the pan and the residual heat from the crispy skin accomplish. The skin should sound like tapping on a table when you tap it with a knife. Serve skin-side up so it stays crisp. The fat left after confit is liquid gold — strain it, refrigerate it, use it to roast potatoes (confit duck fat roast potatoes are the best roast potatoes on earth), fry eggs, start soups, or make another batch of confit. It can be reused 3–4 times, getting more flavourful with each use. For garlic confit: whole peeled cloves submerged in olive oil at 90°C for 2 hours. They turn soft, sweet, spreadable, and nutty. The oil becomes garlic-infused oil. Both components are kitchen gold — spread the garlic on bread, use the oil in vinaigrettes. Keeps refrigerated for 2 weeks.
Skipping the cure — you get bland, pale, unseasoned meat poached in fat. Not the same thing. Temperature too high — above 100°C the fat begins to fry the meat. The surface seals, moisture is trapped unevenly, and the texture goes from silky to stringy. Not enough fat — exposed surfaces dry out and develop a different texture from submerged surfaces. The protein must be fully submerged. Eating it straight from the fat without a finishing sear — confit without crispness is only half the experience. Not resting in the fat — confit that cools and rests in its cooking fat overnight (or longer) develops deeper flavour as the aromatics continue to infuse. Traditional confit was stored in the fat for weeks. The fat seal is an airtight preservative.