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 ↓
Sauce for Salmon and Other Fish
Ingredients
Directions
Heat the milk in a saucepan until it boils.
Mix the cornstarch with cold water to form a slurry, then add it to the boiling milk.
Stir in the salmon liquor and butter until well combined.
Remove from heat and stir in the beaten egg.
Season with mace and cayenne pepper to taste.
Cover and let it stand in hot water for 3 minutes.
Finally, stir in the lemon juice and serve immediately over the salmon.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Milk + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
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Mace + peppertop 16% of all pairsSmell alikelowCooked together12,257 recipes
Shared aroma: myristicin (spice, warm).
-
Salmon + buttertop 16% of all pairsSmell alikemoderateCooked together4,481 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
Mace and pepper barely smell alike, yet cooks put them together in 12,257 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
- Cornstarch
- Thickens the milk into a smooth sauce as it heats and gelatinises.
- Raw egg
- Adds richness and helps set and thicken the sauce gently when stirred in off the heat.
- Butter
- Adds fat for a silky mouthfeel and richer flavour.
- Milk
- Forms the liquid base of the sauce that the cornstarch thickens.
- Lemon juice
- Adds acidity that brightens the rich sauce and balances the salmon.
The step that matters
Stir in the beaten egg off the heat. Egg proteins set at around 70°C and can scramble if the sauce is too hot. Removing the pan from heat before adding the egg, and stirring steadily, keeps the sauce smooth and thickened rather than grainy.
Swap the mace
How well each one fits the dish's main ingredients (milk, salmon, butter, egg, lemon, pepper):
- Parsleyfits better
- Dillfits better
- Nutmegfits better
- Macethe original
Fit is the average pairing score against milk, salmon, butter, egg, lemon, pepper. 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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