Why it works: Potato and parsley are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 2,855 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Potato Salad
Ingredients
Directions
Prepare the salad
In a large bowl, combine the sliced boiled potatoes and bits of cold boiled fish if desired.
In a separate bowl, mix the melted butter or olive oil, cream, salt, white pepper, mustard, and vinegar.
Make the dressing
Cook the dressing mixture over low heat until thoroughly combined, then add the beaten eggs and stir for 2-3 minutes.
Dress and serve
Pour the dressing over the potatoes and fish mixture while still warm.
Garnish with chopped parsley and arrange sliced cucumbers or green pickled tomatoes around the edge.
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 + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Potato + mustardtop 7% of all pairsSmell alikemoderateCooked together1,340 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mustard + parsleytop 8% of all pairsSmell alikestrongCooked together2,588 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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 stay warm.
- Eggs
- Thicken the dressing as they cook gently, giving it a creamy body.
- Cream
- Adds richness and smoothness to the dressing.
- Butter or olive oil
- Adds fat and a rounded, savory mouthfeel to the dressing.
- Vinegar
- Adds acidity that brightens the dressing and balances the richness.
The step that matters
Adding the beaten eggs to the dressing. Eggs thicken when heated, but if the dressing is too hot or cooked too fast the egg proteins can scramble into lumps. Keep the heat low and stir constantly so the dressing turns smooth and creamy.
Swap the white pepper
How well each one fits the dish's main ingredients (potato, butter, cream, mustard, vinegar, egg, parsley):
- Tarragonfits better
- Capersfits better
- Dillfits better
- White pepperthe original
Fit is the average pairing score against potato, butter, cream, mustard, vinegar, egg, 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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