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 ↓
Pickled Salmon
Ingredients
Directions
Prepare the salmon
Soak the salt salmon for 24 hours.
Pour boiling water over the salmon to cook, changing the water while cooking.
Make the sauce and serve
Melt the butter in a pan.
Add the flour and 2 tablespoons of boiling water to the melted butter, stirring to combine.
Season with pepper and pour the sauce over the salmon when ready to 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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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
- Salt salmon
- Main ingredient; soaking draws out the salt so the fish tastes milder.
- Butter
- Adds fat and richness to the sauce and carries its flavour.
- Flour
- Thickens the sauce as its starch swells in the hot liquid.
The step that matters
Adding the flour and water to the melted butter. Stirring as the flour goes in keeps it evenly dispersed, so it hydrates and thickens smoothly instead of forming 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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