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 ↓
Roast Wild Duck
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare and roast
Do not dress the wild duck too soon after killing; keep it for several days in cold weather.
Preheat the oven to 400°F (200°C).
Bake the duck for 5 to 10 minutes without basting to retain the gravy.
Baste frequently with butter and water for 30 to 40 minutes until cooked.
Serve on a very hot dish with a cut lemon.
Make the sauce
In a small saucepan, combine Worcestershire sauce, salt, cayenne pepper, mushroom catsup, and lemon juice, and heat the sauce.
Remove from the fire and stir in prepared mustard.
Pour the sauce into a hot gravy boat.
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).
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Mushroom + buttertop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Lemon + mustardtop 11% of all pairsSmell alikestrongCooked together3,816 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Pepper + mushroomtop 11% of all pairsSmell alikemoderateCooked together13,580 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Wild duck
- Provides the meat, whose fat renders during roasting and helps brown and moisten the bird.
- Butter
- Adds fat that promotes browning and rich flavour when spooned over the duck.
- Worcestershire sauce
- Contributes savoury, fermented depth to the sauce.
- Lemon juice
- Adds acidity that brightens the rich duck and the sauce.
- Mushroom catsup
- Adds savoury, umami-rich depth to the gravy.
- Prepared mustard
- Adds sharp, tangy flavour to the finished sauce.
The step that matters
Remove the sauce from the fire before stirring in the mustard. Strong heat dulls mustard's sharp flavour and can make the sauce grainy or split, so adding it off the heat keeps its tang and a smooth texture.
Swap the mustard
How well each one fits the dish's main ingredients (sauce, pepper, mushroom, lemon, butter):
- Shallotfits better
- Capsicumfits better
- Spinachfits better
- Mustardthe original
Fit is the average pairing score against sauce, pepper, mushroom, lemon, butter. 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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