Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Potato Salad
Ingredients
Directions
Make the dressing
In a double boiler, heat the eggs, vinegar, cayenne, and melted butter until thickened.
Once cool, stir in the sweet cream.
Prepare the vegetables
Boil the potatoes in their skins, then cool, peel, and cut into squares or dice.
Chop the onion and celery finely, then season with salt.
Combine and serve
Pour the dressing over the potatoes and mix well.
Serve in a flat dish garnished with lettuce leaves.
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 + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + celerytop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Potato + celerytop 7% of all pairsSmell alikemoderateCooked together2,047 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
-
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
- Eggs
- Thicken the dressing as they gently set when heated, giving it body.
- Vinegar
- Adds sharp acidity that balances the richness of the butter and cream.
- Melted butter
- Adds fat and smooth richness to the dressing.
- Sweet cream
- Adds moisture and mellowness, loosening the thickened dressing.
- Potatoes
- Form the bulk of the salad and absorb the dressing's flavour.
- Celery
- Adds crisp texture that contrasts with the soft potatoes.
The step that matters
Thickening the egg dressing. Eggs thicken only within a narrow temperature range. Gentle heat in a double boiler lets the proteins set smoothly, while overheating curdles them into lumps.
Swap the celery
How well each one fits the dish's main ingredients (egg, pepper, vinegar, potato, butter, onion, cream):
- Garlicfits better
- Parsleyfits better
- Tarragonfits better
- Celerythe original
Fit is the average pairing score against egg, pepper, vinegar, potato, butter, onion, cream. 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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