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 ↓
Holstein Sauce for Boiled Fish
Ingredients
Directions
Make the sauce
Melt the butter in a saucepan.
Stir in the flour until combined.
Add the fish water and white wine, stirring until it boils.
If the sauce is too thick, add more fish water.
Season with salt, pepper, and nutmeg.
Finish and serve
In a serving bowl, combine the egg yolk and lemon juice.
Pour the boiling sauce into the bowl and add a walnut-sized piece of butter on top.
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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Lemon + nutmegtop 5% of all pairsSmell alikestrongCooked together11,318 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Pepper + nutmegtop 7% of all pairsSmell alikestrongCooked together13,015 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Flour + nutmegtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, green).
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White wine + buttertop 9% of all pairsSmell alikemoderateCooked together5,083 recipes
Shared aroma: ethyl octanoate (fruity, wine).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Enriches the sauce with fat, giving it a rich, smooth mouthfeel.
- Flour
- Thickens the butter and liquid into a smooth sauce body.
- Egg yolk
- Emulsifies and thickens the sauce, adding richness and body.
- Lemon juice
- Adds acidity that brightens the sauce and balances its richness.
- White wine
- Adds acidity and aromatic flavour to the liquid base.
The step that matters
Pour the boiling sauce into the egg yolk and lemon mixture. Egg yolk can scramble if it meets very hot liquid too quickly. Pouring the hot sauce in gradually while whisking, and not returning the mixture to high heat, helps the yolk thicken smoothly instead of curdling.
Swap the nutmeg
How well each one fits the dish's main ingredients (fish, white wine, flour, butter, egg, lemon, pepper):
- Parsleyfits better
- Tarragonfits better
- Thymefits about as well
- Nutmegthe original
Fit is the average pairing score against fish, white wine, flour, 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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