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Kidney Stew

A stew of kidneys simmered with butter, mace, pepper, salt, onion, brown gravy, lemon juice, and lemon peel, served over toasted bread.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 11 ingredients
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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 ↓

Kidney Stew

Ingredients

Directions

Prepare the kidneys

  1. Cut kidneys lengthwise into three pieces, wash them well, and dry carefully.

  2. Warm butter in a saucepan and add kidneys before the butter is fully hot.

Cook the stew

  1. Season with mace, pepper, and salt.

  2. Add chopped onion and brown gravy.

  3. Simmer covered for about 10 minutes.

  4. Add lemon juice and grated lemon peel.

Serve

  1. Remove kidneys and place them on a hot dish with fried or toasted bread underneath.

  2. Thicken gravy with browned flour, boil once, pour over kidneys, and serve.

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. Pepper + lemontop 3% of all pairs
    Smell alikestrong
    Cooked together27,047 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  2. Butter + breadtop 7% of all pairs
    Smell alikemoderate
    Cooked together27,232 recipes

    Shared aroma: delta-decalactone (sweet, creamy).

  3. Pepper + oniontop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

  4. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: decanal (soap, orange peel).

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

Kidneys
Form the main body of the stew, becoming tender during gentle simmering.
Butter
Adds richness and carries the seasonings as the kidneys begin to cook.
Brown gravy
Provides the liquid base and savory flavor that the stew is built on.
Browned flour
Thickens the gravy so it coats the kidneys rather than running off.

The step that matters

Warm the butter gently before adding the kidneys. The step says to add kidneys before the butter is fully hot, so the meat sears lightly without browning too hard. Heat that is too high can toughen the outside and dry the surface before the stew liquid is added.

Swap the mace

How well each one fits the dish's main ingredients (butter, pepper, onion, lemon, flour, bread):

  1. Parsleyfits better
  2. Thymefits better
  3. Marjoramfits better
  4. Macethe original

Fit is the average pairing score against butter, pepper, onion, lemon, flour, bread. 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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