Why it works: Mustard and horseradish match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,832 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Deviled Eggs
Ingredients
Directions
Prepare the filling
Boil the eggs hard, then cut them in half and remove the yolks.
Mash the yolks finely and season with salt, pepper, salad oil, butter, vinegar, and mustard.
Press the yolk mixture back into the egg whites.
Assemble and serve
Pin the two halves together with toothpicks.
Wrap each egg in waxed paper for picnics.
For variation, add grated horseradish mixed with vinegar to the yolks, and season with butter, salt, and pepper.
Garnish each egg half with a sprig of parsley and half a stuffed olive.
Serve on a bed of parsley.
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 + horseradishtop 1% of all pairsSmell alikestrongCooked together1,832 recipes
Shared aroma: coumarin (sweet, hay).
-
Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Horseradish + parsleytop 6% of all pairsSmell alikestrongCooked together562 recipes
Shared aroma: coumarin (sweet, hay).
-
Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Mustard + parsleytop 8% of all pairsSmell alikestrongCooked together2,588 recipes
Shared aroma: trans-2-hexenal (green, leafy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Form the creamy base of the filling, giving richness and body.
- Salad oil
- Adds fat that makes the mashed yolk filling smooth and soft.
- Butter
- Adds fat and richness, softening the yolk filling's texture.
- Vinegar
- Adds acidity that brightens the rich yolk mixture.
- Mustard
- Adds sharp flavor that balances the richness of the yolks.
Swap the horseradish
The recipe marks horseradish as optional. How well each one fits the dish's main ingredients (egg, pepper, butter, vinegar, mustard, ham, parsley):
- Shallotfits better
- Horseradishthe original
- Chivefits about as well
- Capsicumfits about as well
Fit is the average pairing score against egg, pepper, butter, vinegar, mustard, ham, parsley. 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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