Why it works: Mustard and lettuce match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,356 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Egg Sandwiches
Ingredients
Directions
Remove the yolks from the hard-boiled eggs and pound them to a paste.
Season the yolk paste with mustard, melted butter, pepper, coarse sea salt, and chopped pickle.
If desired, mix in minced cold meat or cheese.
Spread the mixture between crackers and lettuce.
Garnish with parsley and rings of hard-boiled eggs.
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 + lettucetop 1% of all pairsSmell alikestrongCooked together1,356 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Lettuce + parsleytop 5% of all pairsSmell alikestrongCooked together1,483 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Mustard + parsleytop 8% of all pairsSmell alikestrongCooked together2,588 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Swap the lettuce
How well each one fits the dish's main ingredients (egg, mustard, butter, pepper, meat, parsley):
- Shallotfits better
- Chivefits about as well
- Horseradishfits about as well
- Lettucethe original
Fit is the average pairing score against egg, mustard, butter, pepper, meat, parsley. Candidates are from the same food group and used in at least 100 recipes.
More egg sandwich recipes
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