Why it works: Celery and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 6,810 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Potato Salad
Ingredients
Directions
Prepare the potatoes
Peel the potatoes and slice them lengthwise into four pieces.
Hold the pieces together and slice into small blocks.
Place the potato blocks in cold water and boil until tender but not too soft.
Let the potatoes cool on a large dish and sprinkle with coarse sea salt and celery seed.
Make the dressing
In a saucepan, beat the egg yolks with ground mustard, vinegar, sugar, and a pinch of celery seed.
Cook slowly until the mixture thickens, then pour it over the cooled potatoes.
Finish and serve
Slice the hard boiled eggs over the salad and garnish with parsley.
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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Celery + parsleytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Celery + mustardtop 2% of all pairsSmell alikemoderateCooked together4,169 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Potato + celerytop 7% of all pairsSmell alikemoderateCooked together2,047 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).
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 hold their shape when boiled until tender.
- Egg yolks
- Thicken the dressing as they cook, giving it a creamy, smooth body.
- Vinegar
- Adds acidity that brightens the dressing and balances the sweetness and richness.
- Sugar
- Balances the sharpness of the vinegar and mustard in the dressing.
- Ground mustard
- Adds sharp, pungent flavour that gives the dressing its character.
The step that matters
Cook the dressing slowly until it thickens. Egg yolks thicken through gentle heat; if cooked too fast they can overheat and scramble, leaving a lumpy dressing instead of a smooth, creamy one.
Swap the potato
How well each one fits the dish's main ingredients (celery, egg, mustard, vinegar, sugar, parsley):
- Horseradishfits better
- Shallotfits better
- Lettucefits better
- Potatothe original
Fit is the average pairing score against celery, egg, mustard, vinegar, sugar, 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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