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
Prepare the vegetables and eggs
Boil the potatoes in their jackets, then peel and cut them into cubes.
Chop the whites of the hard boiled eggs not too fine.
Slice the green onions and cut the celery fine.
Make the dressing
In a saucepan, combine the beaten eggs, vinegar, sugar, salt, and butter. Boil until thick.
Once cooled, thin the dressing with cream.
Assemble and serve
Mix the potatoes, egg whites, green onions, salt, pepper, and celery together.
Line a salad bowl with lettuce leaves, add the potato mixture, and garnish with chopped yolks and 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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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).
-
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 hold their shape when cubed and cooled.
- Beaten eggs
- Thicken the vinegar dressing as they cook, giving it body.
- Vinegar
- Adds sharpness that balances the sugar and richness of the dressing.
- Sugar
- Sweetens the dressing and softens the sharpness of the vinegar.
- Butter
- Adds fat and smoothness to the cooked dressing.
- Cream
- Thins the cooled dressing and adds richness and a creamy texture.
The step that matters
Boil the dressing until thick. Beaten eggs thicken as their proteins set with heat, but overheating makes them scramble and curdle. Keep the heat moderate and stir constantly so the dressing thickens smoothly.
Swap the celery
How well each one fits the dish's main ingredients (potato, egg, onion, pepper, vinegar, sugar, butter):
- Garlicfits better
- Parsleyfits better
- Tarragonfits better
- Celerythe original
Fit is the average pairing score against potato, egg, onion, pepper, vinegar, sugar, 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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