Duck Breast à l'Orange with Seville Gastrique and Burnt Orange Glaze

⏱ 75 min · Serves 4

The classic reinvented for the home kitchen: duck breasts rendered low and slow until the skin shatters like glass, served with a glossy bitter-orange gastrique built on caramel, Seville juice and a proper duck stock reduction. Sharp, sweet, deeply savoury — and far less faff than a whole bird.

Per serving: 682 kcal · 41.0g protein · 45.0g carbs · 36.0g fat

Ingredients

• 4 duck breasts (approx. 180–200g each), skin on
• 1 tsp flaky sea salt, plus more to season
• Freshly ground black pepper
• 2 Seville oranges (or 2 regular oranges plus 1 tbsp lemon juice)
• 1 regular orange, for zest and segments
• 80g caster sugar
• 3 tbsp red wine vinegar
• 100ml dry white wine
• 350ml good chicken or duck stock
• 1 tbsp Grand Marnier or Cointreau
• 20g cold unsalted butter, cubed
• 1 tsp cornflour mixed with 1 tbsp cold water (optional)
• 400g Charlotte potatoes, halved
• 2 heads chicory, halved lengthways
• 1 tbsp olive oil
• Small handful watercress, to serve

Method

1. Score the duck skin in a close diamond pattern, cutting through the fat but not the meat. Rub with the flaky salt and leave uncovered at room temperature for 20 minutes while you make the sauce base.
2. Pare 3 strips of zest from the regular orange, then juice both Sevilles and the regular orange — you want about 200ml juice. Segment nothing yet; slice a few rounds if you want a garnish.
3. Put the sugar in a heavy saucepan with 1 tbsp water and melt over medium heat, swirling (don't stir) until it turns a deep amber caramel. Immediately add the vinegar — it will hiss and seize — then the wine, and stir until smooth.
4. Add the orange juice, zest strips and stock. Simmer briskly for 20–25 minutes until reduced by two-thirds and lightly syrupy. Strain and set aside.
5. Boil the potatoes in salted water for 12–15 minutes until tender; drain and steam-dry.
6. Lay the duck skin-side down in a cold, dry heavy frying pan. Set over medium-low heat and render for 12–15 minutes, pouring off fat into a bowl every few minutes, until the skin is thin, deep gold and crisp.
7. Flip, season the flesh, and cook 3–4 minutes for blushing pink (internal 54–56°C). Transfer to a board, skin up, and rest 8 minutes.
8. Tip most of the fat from the pan, add 2 tbsp back with the potatoes and chicory cut-side down. Fry 5–6 minutes until the potatoes are crisp and the chicory is caramelised. Season.
9. Pour off any remaining fat from a small pan, add the reduced orange sauce plus any duck resting juices and the Grand Marnier. Bubble 1 minute, thicken with the cornflour slurry if needed, then whisk in the cold butter off the heat until glossy. Taste — it should be bracingly bitter-sweet.
10. Slice the duck thickly, fan onto warm plates with potatoes, chicory and watercress, and spoon the sauce around, not over, the skin.