Why it works: Vinegar and mustard 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 hard and let them cool.
Cut the eggs in half and remove the yolks.
Make the filling
Mash the yolks finely in a bowl.
Season the mashed yolks with salt, pepper, butter, vinegar, and mustard.
Press the seasoned yolk mixture back into the egg whites.
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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Vinegar + mustardtop 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).
-
Pepper + buttertop 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
- Provide the rich, creamy base that the filling is built on.
- Butter
- Adds fat and richness, making the mashed yolk filling smoother and softer.
- Vinegar
- Adds acidity that brightens the rich yolk filling.
- Mustard
- Adds sharp flavor that balances the richness of the yolks.
The step that matters
Mash the yolks finely. Yolks that are not mashed finely stay lumpy and dry, so the seasonings and butter do not blend in evenly. A smooth mixture also piles and presses neatly back into the whites.
Swap the mustard
How well each one fits the dish's main ingredients (egg, pepper, butter, vinegar):
- Capsicumfits better
- Mustardthe original
- Shallotfits about as well
- Cucumberfits about as well
Fit is the average pairing score against egg, pepper, butter, 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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