Why it works: Parsley and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Of Lamb
Ingredients
Directions
Prepare the lamb
Cut the lamb breast into 2‑inch square pieces.
Wash, dry, and flour the pieces.
Make the butter sauce and cook
In a pan, boil the butter, bacon, and parsley for 10 minutes.
Add the lamb, lemon juice, onion, pepper, and salt to the pan.
Simmer for 2 hours.
Stir in the egg yolks.
Shake the pan over the fire for 2 minutes.
Serve hot.
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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Parsley + lemontop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Lemon + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Parsley + oniontop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 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
What each ingredient does
- Lamb breast
- Provides the meat that becomes tender during long, gentle simmering.
- Flour
- Coats the pieces, helping them brown and thickening the sauce slightly.
- Butter
- Adds fat for richness and a smooth, rounded flavor to the sauce.
- Egg yolks
- Stirred in at the end, they thicken and enrich the sauce.
- Lemon juice
- Adds acidity that brightens the rich butter and meat flavors.
- Bacon fat
- Contributes savory, smoky flavor to the butter sauce.
The step that matters
Stir in the egg yolks. Yolks thicken the sauce as their proteins set at moderate heat. If the sauce is too hot, they scramble and curdle, so remove the pan from strong heat before stirring them in.
Swap the onion
How well each one fits the dish's main ingredients (lamb, flour, butter, parsley, lemon, pepper, egg):
- Shallotfits better
- Spinachfits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against lamb, flour, butter, parsley, lemon, pepper, egg. 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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