Why it works: Lemon and parsley 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 ↓
Liver Sauce for Fowl
Ingredients
Directions
Prepare
Parboil the liver and mince it finely.
Pare the lemon thin, remove the white part, and cut it into small bits, picking out the seeds.
Mince a quarter of the lemon peel very fine and combine it with the lemon bits, minced liver, and salt in a bowl.
Optionally, chop parsley and add it with the liver.
Make the sauce
Heat the mixture over a gentle fire, being careful not to let it boil to avoid oiliness.
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 + parsleytop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Butter + parsleytop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Lemon + buttertop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Liver + parsleytop 17% of all pairsSmell alikelowCooked together1,095 recipes
Shared aroma: alpha-pinene (pine, turpentine).
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Liver + buttertop 19% of all pairsSmell alikemoderateCooked together2,065 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Liver
- Forms the body of the sauce, giving it a rich, savoury base.
- Lemon
- Adds acidity and bright aroma that balance the richness of the butter.
- Melted butter
- Provides fat and smooth, flowing texture for the sauce.
The step that matters
Heat gently without boiling. Boiling can separate the butter fat from the other ingredients, leaving the sauce oily and greasy instead of smooth and cohesive.
Swap the parsley
The recipe marks parsley as optional. How well each one fits the dish's main ingredients (liver, lemon, butter):
- Parsleythe original
- Sagefits about as well
- Thymefits about as well
- Marjoramfits less well
Fit is the average pairing score against liver, lemon, butter. 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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