Why it works: Mustard and lettuce match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 1,356 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Egg Salad II
Ingredients
Directions
Prepare the filling
Cut the hard-boiled eggs in half crosswise.
Remove the yolks and mash them with a fork.
Add a pinch of mustard, salt, and pepper, then moisten with oil or butter.
Fill and serve
Form the mixture into balls and refill the egg whites.
Arrange the filled egg whites on a bed of lettuce and serve with oil or cooked dressing.
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 aroma chemistry they share, and how many recipes mention both.
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Mustard + lettucetop 1% of all pairsAroma overlapstrongMentioned together1,356 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mustard + peppertop 9% of all pairsAroma overlapmoderateMentioned together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + lettucetop 9% of all pairsAroma overlapmoderateMentioned together4,037 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Egg + buttertop 17% of all pairsAroma overlapmoderateMentioned together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Pepper + buttertop 21% of all pairsAroma overlapmoderateMentioned together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Hard-boiled eggs
- The yolks form the creamy body of the filling once mashed and moistened.
- Mustard
- Adds a sharp, pungent flavor that cuts through the richness of the yolks and fat.
- Oil or butter
- Supplies moisture and richness so the mashed yolks become soft and spreadable.
The step that matters
Moistening the yolk mixture. Fat must be added in the right amount. Too little leaves the mashed yolks crumbly and hard to shape into balls, while too much makes the filling loose and runny. Check the texture before forming the balls.
Flavor stand-ins for the lettuce
How well each one fits the dish's main ingredients (egg, mustard, pepper, butter):
- Horseradishbetter flavor fit
- Chiveabout as good a flavor fit
- Shallotabout as good a flavor fit
- Lettucethe original
Fit is the average pairing score against egg, mustard, pepper, butter. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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