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
Boil the eggs
Place the eggs in warm water and bring to a boil at 212°F (100°C).
Lower the heat to 212°F (100°C) and cook for 30 minutes.
Transfer the eggs to cold water, then shell and cut them in half lengthwise.
Make the filling
Remove the yolks and place them in a bowl.
Add melted butter, chopped anchovies or sardines, vinegar, mustard, paprika, and salt to the yolks. Mix well and refill the egg whites with the yolk mixture.
Secure the halves together with toothpicks.
Coat and fry
Dip the filled eggs in beaten egg, then coat with breadcrumbs.
Fry in hot oil until golden brown.
Serve wrapped in tissue paper for picnics or on a hot platter with white or Mexican sauce.
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).
-
Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Butter + mustardtop 22% of all pairsSmell alikemoderateCooked together8,003 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Butter + vinegartop 23% of all pairsSmell alikemoderateCooked together13,513 recipes
Shared aroma: isoamyl acetate (banana, pear).
-
Egg + mustardtop 28% of all pairsSmell alikemoderateCooked together9,210 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Whites set around the filling, and the yolks form the creamy base of the filling.
- Melted butter
- Adds richness and a smooth, moist texture to the yolk filling.
- Anchovies or sardines
- Add a salty, savoury depth to the yolk filling.
- Vinegar
- Adds acidity that brightens the rich yolk filling.
- French mustard
- Adds sharpness and helps balance the richness of the yolks.
The step that matters
Cook the eggs at a gentle heat. Holding eggs at a rolling boil for 30 minutes makes the whites rubbery and can leave the yolks dry and chalky with a grey ring. Keep the heat gentle and cool the eggs promptly so the yolks stay creamy and easy to scoop.
Swap the mustard
How well each one fits the dish's main ingredients (egg, butter, vinegar):
- Cucumberfits about as well
- Shallotfits about as well
- Mustardthe original
- Chivefits about as well
Fit is the average pairing score against egg, 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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