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
Prepare
Slice the potatoes thinly.
Chop the apple and onions finely.
Rinse and chop the parsley.
Assemble and dress
In a large bowl, layer half the potatoes, sprinkle with salt, then add half the parsley, apple, and onions.
Add the remaining potatoes, more salt, and the rest of the parsley, apple, and onion.
Pour the sweet oil or melted butter and vinegar over the mixture.
Mix carefully to avoid breaking the 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 + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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 carry the dressing, giving a soft, starchy texture.
- Sweet oil or melted butter
- Adds fat and richness, coating the potatoes and carrying flavour.
- Vinegar
- Adds acidity that brightens the dish and balances the fat.
- Apple
- Adds crisp texture and a mild sweetness against the acidic dressing.
- Onions
- Add sharp aroma and pungency that mellows during mixing.
The step that matters
Mix carefully to avoid breaking the potatoes. Cooked potato slices are fragile; rough stirring breaks them into mush and releases starch, which makes the salad pasty instead of holding its shape.
Swap the apple
How well each one fits the dish's main ingredients (potato, onion, parsley, butter, vinegar):
- Avocadofits better
- Lemonfits better
- Limefits better
- Applethe original
Fit is the average pairing score against potato, onion, parsley, butter, 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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