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 ↓
Egg Salad
Ingredients
Directions
Cook and dice
Boil the eggs until the yolks are very mealy.
Boil the potatoes with their jackets on.
Peel the eggs and potatoes, then cut them into dice.
Assemble
Add the diced onions.
Layer the eggs and potatoes alternately until all are used.
Pour cream salad dressing over the top.
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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Potato + creamtop 17% of all pairsSmell alikelowCooked together2,481 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Onion + creamtop 18% of all pairsSmell alikelowCooked together10,827 recipes
Shared aroma: 2-nonanone (fruity, floral).
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Egg + creamtop 24% of all pairsSmell alikelowCooked together42,166 recipes
Shared aroma: acetic acid (sour, vinegar).
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Egg + potatotop 29% of all pairsSmell alikemoderateCooked together4,978 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Onion and cream barely smell alike, yet cooks put them together in 10,827 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Provide body and richness, with mealy yolks giving the salad a soft, crumbly texture.
- Potatoes
- Add starchy bulk and a soft texture that holds the layers together.
- Onion
- Adds sharp, aromatic flavour that cuts through the richness of the eggs.
- Cream salad dressing
- Adds moisture and fat, binding the diced eggs and potatoes and making the salad creamy.
The step that matters
Boiling the eggs until the yolks are very mealy. Overcooking eggs causes the yolk to turn dry and grey-green at the surface, while the timing controls how crumbly the yolk becomes. Stopping the cooking promptly in cold water keeps the yolks evenly cooked and easy to dice.
Swap the onion
How well each one fits the dish's main ingredients (egg, potato, cream):
- Asparagusfits better
- Chivefits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against egg, potato, 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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