Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Boiled Salmon
Ingredients
Directions
Prepare the salmon
Wash the salmon in cold water.
Place the salmon in a pot of boiling salted water and boil until the flakes begin to separate.
Drain the salmon.
Make the sauce
In a saucepan, melt the butter and flour over heat until bubbling.
Gradually stir in the boiling water and bring to a boil.
Season the sauce with salt and pepper.
Serve
Serve the sauce with the boiled 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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Salmon + buttertop 16% of all pairsSmell alikemoderateCooked together4,481 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
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Flour + peppertop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Salmon + peppertop 27% of all pairsSmell alikelowCooked together5,446 recipes
Shared aroma: guaiacol (smoky, sweet).
Butter and flour 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
- Salmon
- Is the main protein, cooked gently in salted water until its flakes separate.
- Butter
- Melts with the flour to form the fat base of the sauce, adding richness.
- Flour
- Cooked with butter to form a roux that thickens the sauce.
The step that matters
Stir in the boiling water gradually. Adding the liquid slowly to the hot roux lets the flour starch disperse evenly, so the sauce thickens smoothly without lumps.
“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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