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 hot boiled potatoes into pieces.
Add the chopped onion and parsley.
Dress and toss
Pour a generous amount of plain salad dressing over the potatoes.
If the mixture seems too dry, add a little hot water or soup stock.
Toss gently to avoid breaking the potato slices.
Chill and serve
Chill the salad in the refrigerator until cold.
Serve on small plates with a lettuce leaf and two tablespoons of potato salad for each person.
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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Parsley + lettucetop 5% of all pairsSmell alikestrongCooked together1,483 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Potato + lettucetop 7% of all pairsSmell alikestrongCooked together322 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Onion + lettucetop 8% of all pairsSmell alikestrongCooked together3,562 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Boiled potatoes
- Form the bulk of the salad and absorb the dressing as the main body of the dish.
- Plain salad dressing
- Adds moisture and richness, coating the potatoes and seasoning the salad.
- Chopped onion
- Adds sharp, pungent flavour that cuts through the richness of the dressing.
The step that matters
Toss gently. Cooked potato slices are fragile and break apart when stirred hard, turning the salad mushy. Gentle folding keeps the pieces intact and the texture pleasant.
Swap the onion
How well each one fits the dish's main ingredients (potato, parsley, lettuce):
- Beetrootfits better
- Chivefits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against potato, parsley, lettuce. 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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