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 ↓
French Potato Salad
Ingredients
Directions
Prepare
Slice cold boiled potatoes into a salad bowl.
Sprinkle parsley over the potatoes.
Finely chop the onion and add it to the bowl.
Make the dressing
In a separate bowl, mix mustard, pepper, salt, and vinegar.
Whisk in olive oil until the sauce is creamy.
Combine and serve
Pour the sauce over the potatoes and mix well.
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).
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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Parsley + olivetop 6% of all pairsSmell alikestrongCooked together9,649 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 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
- Cold boiled potatoes
- Form the bulk of the salad and hold the dressing in their starchy surface.
- Olive oil
- Provides fat and richness, and emulsifies with the mustard to make the sauce creamy.
- Mustard
- Acts as an emulsifier that helps oil and vinegar stay combined in the sauce.
- Vinegar
- Adds acidity that brightens the flavour and balances the oil.
- Onion
- Adds sharp aroma and a bite that contrasts with the mild potatoes.
The step that matters
Dress the potatoes while still warm or cold as the record states. Potatoes are the main ingredient that absorbs dressing, and the sauce must be well mixed so it coats evenly rather than pooling at the bottom of the bowl.
Swap the onion
How well each one fits the dish's main ingredients (potato, parsley, mustard, pepper, vinegar, olive):
- Broccolifits better
- Lettucefits better
- Horseradishfits better
- Onionthe original
Fit is the average pairing score against potato, parsley, mustard, pepper, vinegar, olive. 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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