Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Potato Salad
Ingredients
Directions
Pare and slice the boiled potatoes.
In a salad bowl, layer the potatoes and sliced egg alternately.
Sprinkle each layer with coarse sea salt and add minced onion.
Pour ½ cup of hot vinegar over the salad.
Garnish with celery.
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 + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + celerytop 7% of all pairsSmell alikemoderateCooked together2,047 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
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Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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Vinegar + celerytop 17% of all pairsSmell alikemoderateCooked together5,627 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
- Potatoes
- Form the bulk of the salad and absorb the hot vinegar and seasoning as they sit.
- Hard boiled egg
- Adds richness and a soft, creamy texture that contrasts with the potatoes.
- Onion
- Adds sharp, pungent flavor that mellows somewhat in the warm vinegar.
- Hot vinegar
- Provides acidity that gives the salad its tangy flavor and moistens the potatoes.
The step that matters
Pour the hot vinegar over the salad. Hot vinegar penetrates warm potato slices better than cold, so the flavor soaks in while the potatoes are still warm. Pouring it over cold potatoes leaves the dressing sitting on the surface and the salad tasting flat.
Swap the celery
How well each one fits the dish's main ingredients (potato, onion, egg, vinegar):
- Garlicfits better
- Dillfits better
- Parsleyfits better
- Celerythe original
Fit is the average pairing score against potato, onion, egg, 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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