Why it works: Pepper and celery match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 16,012 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Sauce Foe Boiled Fish
Ingredients
Directions
Make the sauce
In a saucepan, combine milk and water and heat until scalding.
In a small bowl, mix flour with cold water to create a paste.
Stir the flour paste into the hot milk mixture.
Add 2 or 3 eggs, and season with salt, pepper, celery, and vinegar.
Finish and serve
In a separate pot, boil 4 or 5 eggs until hard, then peel and slice them.
Pour the sauce over the boiled fish and top with sliced eggs 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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Pepper + celerytop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter 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
- Flour
- Thickens the milk mixture into a smooth, lightly body-filled sauce when stirred in as a paste.
- Milk
- Forms the base of the sauce, giving it a creamy body and mild sweetness.
- Eggs
- Enrich the sauce and add body and richness as they are stirred in.
- Butter
- Adds fat for richness and a silky mouthfeel to the sauce.
- Vinegar
- Adds acidity that brightens the creamy sauce and balances its richness.
The step that matters
Stirring the flour paste into the hot milk. Flour thickens sauces by starch gelatinising in hot liquid. Adding it as a smooth paste, stirred steadily, prevents lumps from forming as the sauce thickens.
Swap the celery
How well each one fits the dish's main ingredients (milk, flour, egg, pepper, vinegar, butter):
- Tarragonfits better
- Parsleyfits better
- Nutmegfits better
- Celerythe original
Fit is the average pairing score against milk, flour, egg, pepper, vinegar, 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.
More sauce for boiled fish recipes
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