Why it works: Onion and pepper 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 ↓
Deviled Kidneys
Ingredients
Directions
Heat the butter in a skillet over medium heat.
Add the kidneys and brown them for a few minutes.
Stir in the onion juice, Worcestershire sauce, sherry or Madeira, salt, and cayenne.
Cook for an additional 2 minutes 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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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Lamb + peppertop 12% of all pairsSmell alikemoderateCooked together3,165 recipes
Shared aroma: 2-nonenal (fatty, green).
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Butter + sherrytop 14% of all pairsSmell alikemoderateCooked together3,505 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Butter and sauce barely smell alike, yet cooks put them together in 15,338 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
- Lamb's kidneys
- Form the main body of the dish, becoming tender and browned when cooked briefly in butter.
- Butter
- Browns the kidneys and carries the seasonings through the skillet.
- Sherry or madeira
- Adds acidity and a sweet, fortified depth that rounds out the savory flavor.
- Worcestershire sauce
- Adds savory, tangy depth that complements the richness of the kidneys.
The step that matters
Brown the kidneys without overcooking them. Kidneys turn tough and rubbery when overcooked. A short, hot sear browns the surface through the Maillard reaction while keeping the inside tender, so the kidneys should be removed promptly after browning.
Swap the onion
How well each one fits the dish's main ingredients (lamb, butter, sauce, sherry, pepper):
- Capsicumfits better
- Tomatofits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against lamb, butter, sauce, sherry, 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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