Why it works: Mustard and onion match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 9,259 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Egg Salad
Ingredients
Directions
Prepare the dressing
In a saucepan, mix the dry mustard, salt, white pepper, curry powder, onion juice, vinegar, beaten egg, olive oil, and cream.
Beat the mixture well and set the bowl over steam, stirring constantly until thick and creamy.
Assemble and serve
Cut the hard-boiled eggs in half lengthwise and remove the yolks.
Remove from heat and gradually stir in the mashed egg yolks.
Chill the mixture in the refrigerator until very cold.
To serve, fill the egg whites with the mixture and place each half on a few leaves of tender lettuce, garnishing with mayonnaise dressing.
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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Mustard + oniontop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mustard + olivetop 8% of all pairsSmell alikestrongCooked together5,950 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Onion + olivetop 8% of all pairsSmell alikemoderateCooked together29,779 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Vinegar + olivetop 10% of all pairsSmell alikemoderateCooked together12,297 recipes
Shared aroma: isoamyl acetate (banana, fruity).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beaten egg
- Thickens the dressing as it cooks over steam, giving it a creamy body.
- Olive oil
- Adds fat that makes the dressing smooth and rich.
- Cream
- Adds moisture and richness, softening the dressing's texture.
- Vinegar
- Adds acidity that brightens the flavour of the dressing.
- Hard-boiled eggs
- Form the base of the salad, with yolks mashed into the dressing.
The step that matters
Stirring the dressing over steam. Beaten egg thickens only gently with constant stirring over steam. Too much heat or no stirring can scramble the egg, leaving lumps instead of a smooth, creamy dressing.
Swap the white pepper
How well each one fits the dish's main ingredients (egg, mustard, onion, vinegar, olive, cream):
- Capersfits better
- Garlicfits better
- Tarragonfits better
- White pepperthe original
Fit is the average pairing score against egg, mustard, onion, vinegar, olive, 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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