Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Potato Salad
Ingredients
Directions
Prepare the potatoes
Boil the potatoes until tender, then let them cool.
Remove the skin and cut the potatoes into ¼ inch thick slices.
Assemble and dress
In a salad bowl, layer the potato slices, sprinkling each layer with a little salt, parsley, chopped onion, and chives.
Repeat the layers until all ingredients are used, finishing with chopped greens on top.
In a separate bowl, mix the vinegar, olive oil, salt, black pepper, and sugar.
Beat the dressing well with a fork and pour it over the salad.
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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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Potato + chivetop 2% of all pairsSmell alikemoderateCooked together611 recipes
Shared aroma: decanal (soap, orange peel).
-
Parsley + chivetop 3% of all pairsSmell alikestrongCooked together2,150 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + chivetop 3% of all pairsSmell alikestrongCooked together1,907 recipes
Shared aroma: decanal (soap, orange peel).
-
Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 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
- Potatoes
- Form the bulk of the salad and absorb the dressing as they cool and soften.
- Vinegar
- Adds acidity that brightens the dressing and balances the oil and sugar.
- Olive oil
- Carries flavour and gives the dressing a smooth, coating body.
- Onion
- Adds sharp, aromatic bite that mellows slightly in the dressing.
The step that matters
Beat the dressing well with a fork and pour it over the salad. Vinegar and oil do not mix on their own. Beating them together temporarily emulsifies the dressing so it coats the potatoes evenly instead of separating into a greasy layer.
Swap the onion
How well each one fits the dish's main ingredients (potato, parsley, chive, vinegar, olive, pepper, sugar):
- Shallotfits better
- Capsicumfits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against potato, parsley, chive, vinegar, olive, pepper, sugar. 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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