Why it works: Mustard and vinegar are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 14,067 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Egg Salad
Ingredients
Directions
Prepare
Boil the eggs for 20 minutes.
Peel the shells and cut the eggs in half lengthwise.
Remove the yolks and place them in a bowl.
Make the filling
Add the beaten eggs, dry mustard, heavy cream, salt, pepper, olive oil, and vinegar to the yolks and mix until very thick.
Assemble and serve
Fill the egg whites with the yolk mixture.
Chill the egg salad.
Serve with mayonnaise.
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.
-
Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Mustard + olivetop 8% of all pairsSmell alikestrongCooked together5,950 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Olive + vinegartop 10% of all pairsSmell alikemoderateCooked together12,297 recipes
Shared aroma: isoamyl acetate (banana, fruity).
-
Pepper + olivetop 11% of all pairsSmell alikemoderateCooked together30,263 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Yolks add richness and bind the filling into a creamy mass.
- Dry mustard
- Adds a sharp, savory bite that balances the rich yolks.
- Heavy cream
- Adds moisture and a smooth, creamy texture to the filling.
- Olive oil
- Adds fat that makes the yolk mixture smooth and silky.
- Vinegar
- Adds acidity that brightens the flavor and cuts the richness.
The step that matters
Boil the eggs for 20 minutes. Boiling too long causes a gray-green ring around the yolks and makes the yolks dry and crumbly. Timing the boil carefully keeps the yolks bright and creamy for mixing.
Flavor stand-ins for the mustard
How well each one fits the dish's main ingredients (egg, cream, pepper, olive, vinegar):
- Capsicumbetter flavor fit
- Spinachabout as good a flavor fit
- Mustardthe original
- Cucumberabout as good a flavor fit
Fit is the average pairing score against egg, cream, pepper, olive, vinegar. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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.
More egg salad recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account for sign-in; Pro adds the full results and chemistry.
Tomato Soup526 recipes
Brown Bread461 recipes
Mutton Broth292 recipes
Yorkshire Pudding264 recipes