Why it works: Butter and lemon are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 41,227 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Egg Sauce
Ingredients
Directions
Prepare
Boil the eggs hard and cut them into small dice.
Melt the butter in a pan and add the diced eggs.
Crush the yolks into a powder.
Mix the powdered yolks with the butter.
Mince the eggs finely.
Finish the sauce
Add the grated ham or tongue, white pepper, and lemon juice.
Warm the mixture in melted butter before serving.
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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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Butter + hamtop 16% of all pairsSmell alikemoderateCooked together5,475 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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White pepper + lemontop 16% of all pairsSmell alikelowCooked together1,658 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Egg + hamtop 17% of all pairsSmell alikemoderateCooked together4,526 recipes
Shared aroma: 2,4-decadienal (seaweed).
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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
- Hard-boiled eggs
- Provide the main body of the sauce, with yolks crushed to a powder for a smooth, thick texture.
- Butter
- Adds richness and fat, carrying the egg flavour and helping the yolks blend smoothly.
- Grated ham or tongue
- Adds savoury, meaty flavour to the sauce.
- Lemon juice
- Adds acidity that brightens the rich butter and egg flavours.
The step that matters
Crush the yolks into a powder before mixing with butter. Yolks left in lumps stay grainy and do not blend into the butter. Fully breaking them down lets the fat coat the fine particles, giving a smooth, even sauce.
Swap the white pepper
How well each one fits the dish's main ingredients (egg, butter, ham, lemon):
- Parsleyfits better
- Tarragonfits better
- Nutmegfits better
- White pepperthe original
Fit is the average pairing score against egg, butter, ham, lemon. 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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