Why it works: Lemon and pepper match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Stuffed Eggs
Ingredients
Directions
Prepare
Remove the shells from the hard-cooked eggs and cut them in half, removing the yolks.
Press the yolks through a sieve.
Fill and serve
Mix the sieved yolks with the minced onion, lemon juice, butter, and chopped green pepper.
Fill the egg whites with the yolk mixture and secure them together with toothpicks.
Serve cold for luncheon or picnics.
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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Lemon + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Lemon + buttertop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Their rich, smooth texture forms the creamy filling once pressed through a sieve.
- Butter
- Adds fat and richness, making the yolk filling smoother and more moist.
- Lemon juice
- Adds acidity that brightens the mild, rich flavour of the yolk filling.
- Minced onion
- Contributes sharp aromatic flavour to the yolk filling.
The step that matters
Press the yolks through a sieve. Pressing the yolks breaks them into fine particles, so the filling becomes smooth rather than crumbly and blends evenly with the butter and other mix-ins.
Swap the onion
How well each one fits the dish's main ingredients (egg, lemon, butter, pepper):
- Asparagusfits better
- Capsicumfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against egg, lemon, butter, pepper. 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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