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Kidney Stew

A stew of sliced lamb kidneys cooked with onion, flour, butter, and seasonings.

From an old cookbook · modernised transcription
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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 ↓

Kidney Stew

Ingredients

Directions

Prepare the kidneys

  1. Remove the fat and white centers from the kidneys.

  2. Soak the kidneys in salted water for 1 hour.

  3. Dry the kidneys and cut them into ½ inch thick slices.

  4. Dredge the slices in flour.

Cook the stew

  1. Sauté the kidneys in butter or drippings with chopped onion for 5 minutes.

  2. Add water or stock, bring to a boil, then let stand over hot water for 6-8 minutes.

  3. Season with salt, pepper, and sherry or Worcestershire sauce.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  2. Lamb + peppertop 12% of all pairs
    Smell alikemoderate
    Cooked together3,165 recipes

    Shared aroma: 2-nonenal (fatty, green).

  3. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Butter + sherrytop 14% of all pairs
    Smell alikemoderate
    Cooked together3,505 recipes

    Shared aroma: ethyl octanoate (fruity, wine).

  5. Butter + oniontop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

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

Sheep or lamb kidneys
Form the main body of the stew, providing the dish's distinctive rich, earthy flavor.
Flour
Coats the kidney slices so they brown during sautéing and help thicken the liquid.
Butter or drippings
Provides fat for searing the kidneys, adding browning and savory richness.
Water or stock
Forms the cooking liquid that simmers the kidneys into a tender, saucy stew.
Sherry or worcestershire sauce
Adds acidity and depth of flavor that balances the richness of the kidneys.

The step that matters

Sauté the kidneys before adding liquid. Searing floured kidney slices in hot fat browns their surfaces through the Maillard reaction, building flavor. Overcooking them makes them tough and rubbery, so timing matters.

Swap the onion

How well each one fits the dish's main ingredients (lamb, flour, butter, pepper, sherry):

  1. Capsicumfits better
  2. Potatofits better
  3. Shallotfits better
  4. Onionthe original

Fit is the average pairing score against lamb, flour, butter, pepper, sherry. 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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