Why it works: Lemon and pepper 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 ↓
Salmon a LA Reine
Ingredients
Directions
Make the sauce
Melt the butter in a chafing dish.
Gradually stir in the flour until smooth.
Add the water, lemon juice, pepper, salt, and minced onion.
Stir in the mashed egg yolks.
Finish and serve
Add the salmon and let it simmer for about 5 minutes before serving.
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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Lemon + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Forms the fat base that the flour is cooked into for the sauce.
- Flour
- Thickens the butter and water into a smooth, creamy sauce.
- Lemon juice
- Adds acidity that brightens the rich sauce.
- Hard-boiled egg yolks
- Enrich the sauce with richness and body as they mash into it.
- Salmon
- Provides the main protein, warmed gently through in the sauce.
The step that matters
Add the salmon and simmer gently. Once the salmon is in, the sauce should only simmer. Boiling hard can break the emulsified, thickened sauce and toughen the fish, so keep the heat low.
Swap the onion
How well each one fits the dish's main ingredients (butter, flour, lemon, pepper, egg, salmon):
- Asparagusfits better
- Chivefits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against butter, flour, lemon, pepper, egg, salmon. 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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