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 ↓
Calf's Liver a L'anglaise
Ingredients
Directions
Prepare
Put the butter into a warm saucepan.
Cut the liver into slices ½ inch thick.
Lay the sliced liver in the butter.
Mince the pork.
Cover the liver with the minced pork.
Sprinkle the parsley, onion, and pepper on top.
Cover the saucepan tightly.
Cook in water bath
Place the saucepan in a kettle of hot water.
Keep the water below boiling for 1 hour.
Let the water boil for another hour.
Make the sauce and serve
Remove the liver.
Place the liver on a chafing dish to keep warm.
Boil the remaining liquid and thicken it with browned flour.
Pour the sauce over the liver and serve.
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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Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Liver + porktop 9% of all pairsSmell alikemoderateCooked together1,606 recipes
Shared aroma: 1-nonanal (fatty, waxy).
-
Pork + oniontop 10% of all pairsSmell alikemoderateCooked together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
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
- Liver
- Forms the main body of the dish, becoming tender with gentle, slow cooking.
- Fat salt pork
- Bastes the liver with melting fat and adds savory flavor to the pan liquid.
- Butter
- Adds richness and fat that helps the liver brown lightly and carries flavor.
- Onion
- Adds aromatic sweetness and savory depth to the cooking liquid.
- Browned flour (in the method)
- Thickens the remaining cooking liquid into a smooth sauce and adds a toasted flavor.
The step that matters
Keeping the water below boiling. Holding the water just under a boil cooks the liver gently and keeps it tender. A rolling boil toughens proteins and makes the liver dry and grainy.
Swap the onion
How well each one fits the dish's main ingredients (liver, pork, butter, parsley, pepper):
- Potatofits better
- Carrotfits about as well
- Capsicumfits about as well
- Onionthe original
Fit is the average pairing score against liver, pork, butter, parsley, 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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