Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Calfs Liver Saute
Ingredients
Directions
Prepare the liver
Season the liver with salt and paprika.
Roll the seasoned liver in flour.
Cook and serve
Heat the butter in a frying pan and fry the onion until soft.
Add the liver to the pan.
Cook until light brown, turning often.
Transfer the liver to a hot dish.
Stir the catsup and sherry into the butter in the frying pan, then boil briefly.
Pour the sauce over the liver.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + sherrytop 14% of all pairsSmell alikemoderateCooked together3,505 recipes
Shared aroma: ethyl octanoate (fruity, wine).
-
Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Liver + oniontop 15% of all pairsSmell alikelowCooked together1,420 recipes
Shared aroma: furaneol (caramel, strawberry).
-
Onion + flourtop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour 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
- Calf's liver
- Is the main protein, cooked quickly so it browns outside while staying tender inside.
- Butter
- Fat that carries the frying and browns the liver while forming the base of the sauce.
- Flour
- Coating that helps the liver brown and thickens the pan juices slightly.
- Sherry
- Adds acidity and aroma to the pan sauce, deglazing the flavourful bits left in the pan.
- Catsup
- Adds sweetness and tang to the pan sauce.
The step that matters
Cooking the liver until just light brown. Calf's liver is thin and lean, so overcooking quickly makes it dry and grainy. Turning it often over moderate heat browns the surface gently while the inside stays tender.
Swap the onion
How well each one fits the dish's main ingredients (liver, butter, sherry, flour):
- Shallotfits better
- Chivefits about as well
- Leekfits about as well
- Onionthe original
Fit is the average pairing score against liver, butter, sherry, flour. 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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