Duck Confit with Puy Lentils

Crisp-skinned duck confit with Puy lentils has the feel of classic French bistro cooking: rich, savoury duck set against small green lentils that stay neatly intact and slightly firm. The lentils are gently simmered with shallot, carrot, celery and thyme, then sharpened with red wine vinegar and rounded with Dijon mustard, giving them enough acidity and depth to stand up to the duck. Using cooked confit legs keeps the dish practical, while a final pan-crisp gives the skin its essential golden crunch. Serve straight away for the best contrast between hot, glossy lentils and crisp duck.
Recipe by JustRecipes Editorial Team
Content validated: August 2026 How we create recipes
Made this recipe? Rate it
Cuisine style French bistro cooking
Cooking style Make-ahead friendly
Time commitment Under 1 hour

Why this recipe works

  • Crisp skin, tender lentils: The duck is crisped separately from the lentils, keeping the skin golden while the lentils stay soft, savoury and intact.
  • Richness with lift: Red wine vinegar and Dijon mustard cut through the duck fat and give the lentils a brighter, more rounded finish.
  • Built-in depth: Shallot, carrot, celery, thyme and stock give the lentils a classic savoury base without needing a long cooking time.
  • Bistro-style finish: Using cooked confit-style duck legs makes it possible to get a polished, hearty result with a short final cook.

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Authenticity notes

  • Classic French pairing: Duck confit and lentils are a well-established French combination, matching rich preserved duck with earthy pulses and a sharp, savoury dressing.
  • Why Puy lentils matter: Puy lentils are particularly suited to this dish because they hold their shape well and keep a gentle bite after simmering.

Texture tips

  • For crisper duck skin: Let the duck sit skin-side down without moving it too often, so the skin has steady contact with the hot pan.
  • Keep the lentils intact: Use a gentle simmer rather than a hard boil; this helps the lentils soften evenly without splitting.
  • Avoid drying the duck: Once the skin is crisp, turn the legs only briefly to heat the meat through, rather than cooking them for too long on the second side.

Make-ahead tips

  • Cook the lentils ahead: The lentils can be prepared in advance and reheated gently with a little stock before serving.
  • Keep duck and lentils separate: Store the duck separately from the lentils so the skin has the best chance of crisping again when reheated.
  • Reheat with care: Warm the lentils slowly and re-crisp the duck in a frying pan until piping hot all the way through, especially near the bone.

Serving ideas

  • Serve with something fresh: A bitter green salad or simply dressed leaves work well alongside the richness of the duck.
  • Wine pairing: A medium-bodied red with good acidity, such as Pinot Noir or Beaujolais, suits the duck without overwhelming the lentils.

Equipment you'll need

Ladle Large frying pan Large pot Wooden spoon
Ingredients
Instructions
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  1. Warm the duck fat in a large pot over medium heat. Finely chop the shallots, then dice the carrot and celery, and cook for 6 to 8 minutes until softened but not coloured.
  2. Add the thyme sprigs and the Puy lentils, stirring to coat in the fat. Pour in the chicken stock and bring to a gentle simmer.
  3. Simmer gently for 22 to 28 minutes, stirring occasionally, until the lentils are tender but still holding their shape and the liquid is mostly absorbed. If the pot looks dry before the lentils are tender, add a small splash of stock from the pot as needed and keep the simmer gentle.
  4. Stir the red wine vinegar and Dijon mustard into the lentils, then remove the thyme sprigs. Keep the lentils warm over very low heat while you crisp the duck.
  5. Heat a large frying pan over medium-high heat and place the duck legs skin-side down. Cook for 6 to 10 minutes until the skin is deeply golden and crisp, then turn and warm through for 2 minutes.
  6. Spoon the lentils onto plates and set a duck leg on each portion. Serve straight away while the skin is crisp and the lentils are hot.

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Recipe notes

Tips

  • Keep the lentils at a gentle simmer rather than a rapid boil so they stay intact and creamy rather than splitting.
  • If your duck legs are very salty, taste the lentils after stirring in the mustard and vinegar before deciding whether they need any extra seasoning.
  • This dish uses cooked confit duck legs; reheat until piping hot all the way through, especially near the bone.

Substitutions

  • Replace red wine vinegar with sherry vinegar for a rounder, slightly sweeter finish.
  • Replace Dijon mustard with whole-grain mustard for a coarser texture in the lentils.
  • Replace chicken stock with vegetable stock for a lighter, more vegetable-forward base.

Storage

  • Refrigerate up to 3 days
  • Cool the lentils and duck separately, then refrigerate in airtight containers. Reheat the lentils gently in a saucepan with a splash of chicken stock, and re-crisp the duck in a hot frying pan until piping hot.

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Duck Confit with Puy Lentils
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Recipe overview

  • Servings: 4 servings
  • Total time: 50min (20min active)
  • Difficulty: Medium
  • Cuisine: French
  • Allergens:
    Mustard
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Equipment you'll need

Ladle Large frying pan Large pot Wooden spoon
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