Why it works: Pepper and parsley 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
Boil or steam the potatoes with their skins on until done.
Peel and slice the warm potatoes into a deep bowl.
Sprinkle with salt, pepper, and onion.
Dress and finish
Pour boiling vinegar mixed with water and melted butter or oil over the potatoes.
Cover with a saucer and shake well; let stand for 20 to 30 minutes.
If there's too much liquid, pour off some and mix the remainder with mayonnaise dressing and chopped parsley, if desired.
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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Pepper + parsleytop 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).
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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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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 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 vinegar dressing as they soak.
- Vinegar
- Adds acidity that sharpens flavor and seasons the warm potatoes.
- Butter or oil
- Adds fat and a richer mouthfeel to the dressing coating the potatoes.
- Onion
- Contributes sharp aroma and flavor that mellows as it sits in the dressing.
The step that matters
Dress the potatoes while they are warm. Warm potatoes are porous and absorb the boiling vinegar mixture far better than cold ones, so the flavor penetrates evenly. Letting them stand lets the starch surfaces keep soaking up the dressing.
Swap the parsley
The recipe marks parsley as optional. How well each one fits the dish's main ingredients (potato, pepper, onion, vinegar, butter):
- Garlicfits better
- Parsleythe original
- Thymefits about as well
- Tarragonfits less well
Fit is the average pairing score against potato, pepper, onion, vinegar, butter. 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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