Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Chicken Livers
Ingredients
Directions
Make the sauce
In a skillet, melt the butter over medium heat and sauté the chopped onion until soft but not browned.
Add the chicken livers and parsley, and cook until the livers are done.
Remove the livers from the skillet and set aside.
Add hot water or stock to the skillet, then whisk in the flour to thicken the sauce.
Season the sauce with salt and pepper, then strain it.
Pour the sauce over the cooked livers.
Prepare the croustade and serve
For the croustade, fry the shaped stale bread in boiling lard until golden brown.
Place some livers in the center of the croustade and arrange the remaining livers around the base.
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 + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Onion + chickentop 8% of all pairsSmell alikemoderateCooked together17,814 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
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Onion + parsleytop 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
- Chicken livers
- Provide the main protein, which firms and turns opaque as they cook through.
- Butter
- Adds fat and richness and carries the flavor of the softened onion.
- Flour
- Thickens the stock into a smooth sauce as its starch swells with heat.
- Onion
- Adds savory sweetness and aroma as it softens in the butter.
The step that matters
Cook the livers until done, then stop. Chicken livers turn grainy and dry when overcooked, because proteins tighten and squeeze out moisture. Cook until just firm and no longer pink inside.
Swap the onion
How well each one fits the dish's main ingredients (butter, chicken, liver, parsley, flour, pepper, bread):
- Shallotfits better
- Carrotfits about as well
- Potatofits about as well
- Onionthe original
Fit is the average pairing score against butter, chicken, liver, parsley, flour, pepper, bread. 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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