Why it works: Mustard and watercress match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 293 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Deviled Eggs
Ingredients
Directions
Boil and peel
Boil the eggs for 15 minutes, then place them in cold water for 30 minutes.
Remove the shells and cut the eggs in half lengthwise.
Make the filling
In a bowl, mash the yolks with olive oil and mustard until smooth.
Add the chopped ham, salt, and pepper; mix thoroughly.
Fill the hollowed egg whites with the yolk mixture.
Serve
Serve on a bed of watercress or salad.
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 + watercresstop 1% of all pairsSmell alikestrongCooked together293 recipes
Shared aroma: coumarin (sweet, hay).
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Olive + mustardtop 8% of all pairsSmell alikestrongCooked together5,950 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Olive + watercresstop 8% of all pairsSmell alikestrongCooked together684 recipes
Shared aroma: coumarin (sweet, hay).
-
Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + watercresstop 10% of all pairsSmell alikemoderateCooked together983 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Whites provide the structure that holds the filling, and yolks become the creamy base.
- Olive oil
- Adds fat to the mashed yolks, making the filling smooth and rich.
- Mustard
- Adds sharp acidity and aroma that cut through the richness of the yolks.
- Cold boiled ham
- Adds savory, salty flavor and a firmer texture to the filling.
The step that matters
Cooling the boiled eggs. Boiling for 15 minutes then chilling for 30 minutes stops the cooking, which prevents a grey ring forming around the yolks and makes the shells easier to remove cleanly.
Swap the mustard
How well each one fits the dish's main ingredients (egg, ham, olive, pepper, watercress):
- Spinachfits about as well
- Mustardthe original
- Lettucefits about as well
- Chivefits about as well
Fit is the average pairing score against egg, ham, olive, pepper, watercress. 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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