Cast-Iron Roast Chicken with Caramelized Leeks
Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 28 Jan 2026
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This roast chicken with caramelised leeks is a masterclass in simple, high-protein cooking. By roasting the bird in a preheated cast-iron frying pan, the heat is distributed evenly, ensuring a crisp skin and succulent meat. The leeks, nestled around the chicken, soften in the cooking juices and oil until they become beautifully sweet and charred at the edges, providing a sophisticated alternative to standard roasted root vegetables.
Ideal for a nutritious Sunday lunch or a restorative midweek dinner, this dish relies on a simple overnight dry-brine to achieve the best possible flavour. This process seasons the bird deeply while drying out the skin for maximum crunch. Serve the carved chicken directly from the pan with the buttery leeks and a side of steamed seasonal greens for a wholesome, comforting meal.
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Ingredients for Cast-Iron Roast Chicken with Caramelized Leeks
1 (3 1/2–4-pound) whole chicken
Kosher salt
3 leeks, white and pale green parts only, halved lengthwise
3 tablespoons olive oil, divided
Freshly ground black pepper
How to make Cast-Iron Roast Chicken with Caramelized Leeks
Back to contentsPat chicken dry with paper towels and season generously with salt, inside and out. (We use 1 teaspoon Diamond Crystal or 1/2 teaspoons Morton kosher salt per lb.) Tie legs together with kitchen twine. Let sit 1 hour to allow salt to penetrate, or chill, uncovered, up to 1 day ahead.
Place a rack in upper third of oven and set a 12” cast-iron skillet or 3-qt. enameled cast-iron baking dish on rack. Preheat oven to 218°C.
Meanwhile, toss leeks and 2 tablespoons oil in a medium bowl to coat; season with salt and pepper.
Once oven reaches temperature, pat chicken dry with paper towels and lightly coat with half of the remaining oil; sprinkle with dry rub, if using. Drizzle remaining oil into hot skillet (this helps keep the chicken from sticking and tearing the skin). Place chicken in the centre of skillet and arrange leeks around. Roast until leeks are browned at edges and tender and an instant-read thermometer inserted into the thickest part of breasts registers 68°C, 50–60 minutes (temperature will climb to 74°C as chicken rests). Let chicken rest in skillet at least 20 minutes and up to 45 minutes.
Transfer chicken to a cutting board and carve. Serve with leeks.
Disclaimer
While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.
Article history
The information on this page is peer reviewed by qualified clinicians.
28 Jan 2026 | Originally published
Authored by:
UK recipe editors
Peer reviewed by
UK recipe editors

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