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 for Boiled Fish
Ingredients
Directions
Make the sauce
In a saucepan, combine the milk and water and heat until scalding.
In a small bowl, mix the flour with a little cold water to form a paste, then stir it into the hot milk mixture.
Add the eggs, season with salt, pepper, celery, and vinegar, and stir well.
Melt the butter and mix it into the sauce.
Serve
Peel the hard-boiled eggs, slice them, and arrange them over the dish.
Pour the sauce over the sliced eggs and serve.
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 and water mixture into a smooth, lightly body sauce when stirred in as a paste.
- Butter
- Adds richness and a silky texture to the sauce.
- Eggs
- Add body and richness to the sauce as they are stirred in.
- Milk
- Forms the creamy base of the sauce.
The step that matters
Stirring the flour paste into the hot milk. Flour mixed only into hot liquid can form lumps, because its starch clumps before it disperses. Mixing it first into a smooth paste with cold water lets the starch spread evenly, giving a smooth sauce that thickens as it heats.
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.
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