Why it works: Lettuce and watercress match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 307 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Deviled Egg Salad
Ingredients
Directions
Boil and peel
Boil the eggs hard, turning them constantly to prevent the yolk from sticking to the shell.
Plunge the eggs into cold water immediately after boiling to prevent discoloration and aid in shell removal.
Peel the eggs carefully and cut them in half lengthwise.
Make the filling
Remove the yolks and place them in a bowl. Mash the yolks with a fork until they crumble to powder.
Add olive oil, vinegar or lemon juice, salt, mustard, and Tabasco or paprika to the yolks and mix well.
Serve
Spoon the yolk mixture back into the egg whites and serve on nests of lettuce and watercress.
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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Lettuce + watercresstop 1% of all pairsSmell alikestrongCooked together307 recipes
Shared aroma: coumarin (sweet, hay).
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Mustard + lettucetop 1% of all pairsSmell alikestrongCooked together1,356 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mustard + watercresstop 1% of all pairsSmell alikestrongCooked together293 recipes
Shared aroma: coumarin (sweet, hay).
-
Olive + lettucetop 5% of all pairsSmell alikestrongCooked together2,580 recipes
Shared aroma: trans-2-hexenal (green, leafy).
-
Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Hard-boiled eggs
- Provide the yolks that mash into the creamy base and the whites that hold the filling.
- Olive oil
- Adds fat that makes the yolk mixture smooth and rich in texture.
- Vinegar or lemon juice
- Adds acidity that brightens the flavour and balances the rich yolks.
- Mustard
- Adds sharp flavour and helps emulsify the oil into the yolks.
The step that matters
Mash the yolks until they crumble to powder. Fine, evenly broken yolks blend with the oil and acid into a smooth filling; lumps left behind make the mixture grainy and uneven.
Swap the lettuce
How well each one fits the dish's main ingredients (egg, olive, vinegar, mustard, sauce, watercress):
- Horseradishfits better
- Shallotfits about as well
- Lettucethe original
- Chivefits about as well
Fit is the average pairing score against egg, olive, vinegar, mustard, sauce, 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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