Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Liver Sauce Fob Fish
Ingredients
Directions
Make the sauce
Boil the liver of the fish until cooked.
Pound the liver in a mortar with flour.
Stir the mixture into the broth or cooking liquid, or melted butter.
Add cayenne pepper and essence of anchovy, soy sauce, or ketchup.
Bring to a boil and strain through a sieve.
Finish and serve
Add lemon juice or diced lemon 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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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Fish + anchovytop 9% of all pairsSmell alikelowCooked together637 recipes
Shared aroma: decanal (soap, orange peel).
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Fish + buttertop 12% of all pairsSmell alikemoderateCooked together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Liver + anchovytop 12% of all pairsSmell alikelowCooked together199 recipes
Shared aroma: hexanol (green, fruity).
Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Liver of the fish
- Breaks down into a rich, thick body that gives the sauce its main flavour and texture.
- Flour
- Thickens the liver mixture so it binds into a smooth sauce.
- Broth or cooking liquid from the fish
- Provides the liquid base that loosens the thickened mixture into a pourable sauce.
- Melted butter
- Adds fat for a silky mouthfeel and rounded flavour.
- Lemon juice or diced lemon
- Adds acidity that brightens the rich liver flavour.
The step that matters
Bring to a boil and strain through a sieve. Boiling thickens the flour-starch mixture fully, while straining removes lumps and fibrous bits so the sauce turns smooth. Stop once it is thick enough to coat a spoon.
“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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