Why it works: Pepper and onion are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Beef Collops in the Ban
Ingredients
Directions
Prepare the beef
Cut steaks into small pieces and flatten them.
Brown a little butter with flour in a pan.
Layer the collops in rows with pepper, salt, and sliced onions until the pan is covered.
Make the gravy and finish
When nearly done, draw them back and make gravy from the skinny parts of the beef.
Thicken the gravy with butter and flour, adding a little vinegar and ketchup.
When it boils, skim it and mix the collops into the gravy, then give it another boil.
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 + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + ketchuptop 13% of all pairsSmell alikemoderateCooked together2,435 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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
- Flour
- Thickens the butter and pan juices into a smooth gravy.
- Butter
- Adds richness and helps brown the flour for the gravy base.
- Sliced onions
- Add sweetness and savory flavor as they cook down with the beef.
- Vinegar
- Adds acidity that brightens the gravy and balances the richness.
The step that matters
Skimming the gravy before adding the collops. Skimming removes fat and foam that rise when the gravy boils, keeping the sauce clean and less greasy before the beef is returned to it.
Swap the onion
How well each one fits the dish's main ingredients (butter, flour, pepper, vinegar, ketchup):
- Capsicumfits better
- Shallotfits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against butter, flour, pepper, vinegar, ketchup. 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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