Why it works: Potato and mustard are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 1,340 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Fish Salad
Ingredients
Directions
Prepare
Remove the skin and bones from the fish.
Chop the boiled potatoes and mix them with the fish.
Make the dressing
Rub the yolks of the hard-boiled eggs smooth.
Season the yolks with pepper, salt, and mustard.
Add the cream and vinegar to the yolk mixture and stir well.
Assemble
Pour the dressing over the fish and potatoes.
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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Potato + mustardtop 7% of all pairsSmell alikemoderateCooked together1,340 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Salmon
- Provides the main protein and flaky body of the salad.
- Potatoes
- Add starchy bulk that soaks up dressing and gives the salad substance.
- Egg yolks
- Mashed smooth, they emulsify with the cream to form a rich, creamy dressing.
- Cream
- Adds fat and softness, mellowing the sharpness of the vinegar and mustard.
- Vinegar
- Adds acidity that brightens the dressing and balances its richness.
The step that matters
Smoothing the egg yolks. Yolks must be rubbed fully smooth before adding cream and vinegar; lumps stay lumpy because yolk fat and proteins bind unevenly, so the dressing can turn grainy rather than creamy.
Swap the potato
How well each one fits the dish's main ingredients (salmon, egg, pepper, mustard, cream, vinegar):
- Horseradishfits better
- Cucumberfits better
- Chivefits better
- Potatothe original
Fit is the average pairing score against salmon, egg, pepper, mustard, cream, vinegar. 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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