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 ↓
Sauce for Steamed Salmon
Ingredients
Directions
Make the sauce
Heat the milk in a saucepan until it boils.
Thicken the milk with cornstarch, stirring constantly.
Remove from heat and add butter, tomato sauce, mace, and cayenne pepper.
Stir in the lemon juice.
Add the raw egg just before serving to prevent curdling.
Serve
Serve the sauce over the steamed 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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Pepper + lemontop 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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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + lemontop 11% of all pairsSmell alikemoderateCooked together4,592 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Butter and sauce barely smell alike, yet cooks put them together in 15,338 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
- Milk
- Forms the liquid base that the cornstarch thickens into a smooth sauce.
- Cornstarch
- Thickens the hot milk as its starch swells, giving the sauce body.
- Raw egg
- Adds richness and helps emulsify the sauce when added off heat.
- Lemon juice
- Adds acidity that brightens the sauce and balances the richness.
- Butter
- Adds fat for a silky mouthfeel and rich flavor.
The step that matters
Add the raw egg just before serving. Raw egg proteins set when heated, so adding it to a hot sauce can curdle it. Adding it off heat, just before serving, keeps the sauce smooth.
Swap the mace
How well each one fits the dish's main ingredients (milk, butter, egg, tomato, sauce, pepper, lemon):
- Parsleyfits better
- Tarragonfits better
- Thymefits better
- Macethe original
Fit is the average pairing score against milk, butter, egg, tomato, sauce, pepper, lemon. 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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