Duck à l'Orange
Roast duck with a glossy orange and Grand Marnier sauce — crisp skin, sticky citrus glaze and a show-stopping finish for four.
Duck à l'Orange is French theatre on a plate: lacquered, caramelised skin and a bright, boozy citrus sauce that cuts through the richness. It’s ideal when you want something impressive but not impossibly fiddly.
This version keeps the technique straightforward — prick the skin, render the fat, make a glossy orange-Grand Marnier sauce and rest the bird properly. Perfect for a celebratory Sunday roast or a dinner where you want applause rather than panic.
Ingredients
- 1 duck — about 2 kg, giblets removed
- 10 g sea salt
- 5 ml freshly ground black pepper
- 4 oranges — zest, juice and segments will be used
- 100 g caster sugar
- 60 ml red wine vinegar
- 300 ml chicken stock — homemade or low-salt shop-bought
- 60 ml Grand Marnier — or another orange liqueur; optional but recommended
- 50 g unsalted butter
- 10 g cornflour — mixed with cold water to a slurry
- 4 fresh thyme — sprigs, one tucked inside the bird
Equipment
- roasting tin
- meat thermometer
- sieve
Instructions
Take the duck out of the fridge 20 minutes before cooking so it comes closer to room temperature. Remove any giblets, pat the skin dry with kitchen paper and prick the skin all over with a skewer or sharp knife (only pierce the skin and fat, not the meat). Season the cavity and skin with sea salt and freshly ground black pepper and tuck the fresh thyme sprigs into the cavity.
Preheat the oven to 220°C fan/240°C conventional. Place the duck breast-side up on a roasting tin with a rack if you have one.
Roast at high heat for 15 minutes to start the crisping process.
Reduce the oven to 180°C fan/200°C conventional and continue roasting for a further 75 minutes. Every 20–25 minutes, carefully drain off excess fat from the tin into a heatproof container (reserve for roasting potatoes).
While the duck roasts, zest one orange and juice the other three (you need about 250–300 ml of juice). Cut the remaining orange into segments for serving and chill briefly so they keep their shape.
Make the sauce: put the caster sugar and a splash of water in a small saucepan over medium heat and melt to a deep amber caramel (about 6–8 minutes). Watch constantly — caramel can burn very quickly.
Carefully deglaze the caramel with the red wine vinegar (stand back — it will steam), then add the orange juice and chicken stock. Bring to a gentle simmer and reduce for 10 minutes until slightly thickened and flavourful.
Mix the cornflour with a little cold water to make a smooth slurry, then whisk into the sauce and simmer for 2–3 minutes until glossy and coating the back of a spoon. Remove from the heat, stir in the Grand Marnier and the unsalted butter a little at a time to finish the sauce, then season to taste with sea salt and freshly ground black pepper.
Once the duck is cooked, remove it from the oven and transfer to a board. Cover loosely with foil and rest for 15 minutes.
While the duck rests, spoon off any fat from the roasting tin but keep the browned bits. Pour a little of the sauce into the tin and scrape up those caramelised bits, then strain into the pan with the rest of the sauce and warm gently for 1–2 minutes.
Carve the duck, arrange on warmed plates, add orange segments and spoon the hot orange sauce over. Serve immediately.
Tips
- Prick the skin only — pierce the fat but not the meat to help fat render without drying the breast.
- Reserve the duck fat for roast potatoes; it’s the best ever flavour booster.
- Make the sauce ahead and keep warm; reheat gently and add a knob of butter just before serving for shine.
- If your sauce separates, whisk in a little cold water or a teaspoon of cornflour slurry off the heat to bring it back together.
- Use a meat thermometer: the thickest part of the thigh should reach about 75°C for well-cooked duck that’s still moist.
Substitutions
Grand Marnier → orange curaçao or 1 tbsp extra orange juice
Stays closechicken stock → vegetable stock
Stays closecornflour → reduce the sauce longer to concentrate, or use 10 g plain flour mixed with a little butter as a paste
Noticeably different
Nutrition
Per serving · estimated
- 807
- Calories
- 38 g
- Protein
- 22 g
- Carbs
- 63 g
- Fat
- 2 g
- Fibre
- 20 g
- Sugar
- 700 mg
- Sodium
FAQ
How can I tell when the duck is cooked?
Use a meat thermometer — the thickest part of the thigh should read about 75°C. The juices should run clear and the leg should move freely when wiggled.
Can I make the sauce ahead?
Yes — make and chill the sauce. Reheat gently and whisk in a knob of butter to restore gloss just before serving.
What should I do with the rendered duck fat?
Strain and keep it in a jar in the fridge for roasting potatoes or vegetables; it keeps for several weeks and adds fantastic flavour.
My sauce is too thin — how to thicken?
Whisk in a small cornflour slurry (a little cornflour mixed with cold water) and simmer for a minute or two until it thickens; add gradually to avoid over-thickening.
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