Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Stewed Ducks
Ingredients
Directions
Prepare the duck
Season the jointed duck with pepper, salt, and flour.
Heat the dripping in a frying pan.
Fry the sliced onion until light brown, then remove the onion from the pan.
Add the duck to the pan and cook for 10 minutes, turning two or three times.
Stew and finish
In a saucepan, combine the cold stock and the jointed duck, cover, and stew slowly until tender.
Season with pepper, salt, tomato ketchup, and lemon juice, then simmer for 3 minutes.
Stir in the brown roux and cook for 1 minute to thicken.
Add the sherry and serve.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + lemontop 11% of all pairsSmell alikemoderateCooked together4,592 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Duck
- Provides the main protein and rich flavour that the stew is built around.
- Flour
- Coats the duck so it browns in the pan and helps thicken the sauce.
- Onion
- Browned first to add sweetness and savoury depth to the stew.
- Stock or consommé
- Supplies the liquid that gently cooks the duck until tender and forms the base of the sauce.
- Brown roux
- Thickens the cooking liquid into a richer, more body-filled sauce.
- Sherry
- Adds acidity and aromatic complexity to the finished sauce.
The step that matters
Stewing the duck slowly until tender. Gentle, covered simmering lets tough connective tissue break down into gelatin, so the meat turns tender and moist. Boiling hard can toughen the meat and make the sauce cloudy.
Swap the onion
How well each one fits the dish's main ingredients (pepper, flour, tomato, ketchup, lemon, sherry):
- Capsicumfits better
- Shallotfits better
- Arrowrootfits better
- Onionthe original
Fit is the average pairing score against pepper, flour, tomato, ketchup, lemon, sherry. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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