Why it works: Lemon and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Potato Salad
Ingredients
Directions
Prepare the potatoes
Boil the potatoes until waxy, then let them cool and cut into thin slices.
Make the dressing
Mash the yolks of the hard-boiled eggs and mix with salt, white pepper, and vinegar.
Stir in the sweet cream last.
Assemble
Pour the mixture over the cold potatoes and garnish with parsley.
If the salad is not sour enough, add more vinegar.
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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Lemon + parsleytop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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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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Lemon + potatotop 12% of all pairsSmell alikemoderateCooked together2,230 recipes
Shared aroma: 2-nonenal (fatty, green).
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, holding their shape when cooked and sliced.
- Hard-boiled egg yolks
- Mashed into the dressing, they add richness and body that coats the potatoes.
- Sweet cream
- Adds fat and creaminess, giving the dressing a smooth, rich texture.
- Vinegar
- Provides acidity that sharpens the flavour and balances the richness of the cream and yolks.
The step that matters
Adding the vinegar. Acid is added to taste because vinegar sharpens flavour and balances the fat of the cream and yolks. Too little leaves the salad flat and heavy, while adding it too early or in excess can overpower the dish. Adjust gradually, tasting as you go.
Swap the white pepper
How well each one fits the dish's main ingredients (lemon, potato, cream, onion, egg, vinegar, parsley):
- Tarragonfits better
- Dillfits better
- Thymefits better
- White pepperthe original
Fit is the average pairing score against lemon, potato, cream, onion, egg, vinegar, parsley. 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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