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 ↓
Deviled Eggs
Ingredients
Directions
Prepare the eggs
Boil the eggs until hard.
Remove the shells when the eggs are cold.
Cut the eggs in half lengthwise and take out the yolks.
Make and serve
Mash the yolks in a bowl and mix with butter, salt, pepper, mustard, and vinegar.
Fill the egg whites with the yolk mixture and serve on toasted crackers.
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 + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Their fat and emulsifying lecithin, blended with butter, make the filling smooth and rich.
- Butter
- Adds fat that makes the mashed yolk filling creamy and moist.
- Mustard
- Adds sharp flavor and helps emulsify the yolk mixture.
- Vinegar
- Adds acidity that brightens the rich yolk filling.
The step that matters
Cool the eggs before peeling. Hot eggs cling to their shells and tear the whites. Chilling the eggs firms the whites and lets the shells slip off cleanly, keeping the halves intact for filling.
Swap the mustard
How well each one fits the dish's main ingredients (egg, butter, pepper, vinegar):
- Capsicumfits better
- Mustardthe original
- Shallotfits about as well
- Cucumberfits about as well
Fit is the average pairing score against egg, butter, pepper, vinegar. 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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