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Beef Kidney

Beef kidney slices fried and served with a gravy of butter, flour, boiling water, and mushroom catsup or lemon juice.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 9 ingredients
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Beef Kidney

Why it works: Beef and mushroom are a kitchen classic. They rank in the top 4% of all ingredient pairs, and cooks put them together in 3,232 recipes. Both carry 2,4-nonadienal, which smells fatty, green. The science ↓

Beef Kidney

Ingredients

Directions

Prepare the kidney

  1. Trim and slice the kidney.

  2. Season with salt and pepper, then dredge in flour.

Fry and make the gravy

  1. Fry the slices on both sides until cooked through.

  2. Remove the kidney from the pan and empty it.

  3. In the same pan, melt butter and add 2 teaspoons of flour.

  4. Stir in boiling water and simmer for 1 minute.

  5. Add mushroom catsup, lemon juice, or vinegar for flavor.

  6. Optionally, mix in minced herbs and finely chopped onion.

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.

Photo for illustrative purposes only · Contact us to use it

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. Beef + mushroomtop 4% of all pairs
    Smell alikemoderate
    Cooked together3,232 recipes

    Shared aroma: 2,4-nonadienal (fatty, green).

  2. Beef + oniontop 7% of all pairs
    Smell alikemoderate
    Cooked together17,092 recipes

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

  3. Butter + mushroomtop 7% of all pairs
    Smell alikemoderate
    Cooked together12,525 recipes

    Shared aroma: trans-2-decenal (waxy, orange).

  4. Beef + peppertop 10% of all pairs
    Smell alikemoderate
    Cooked together18,971 recipes

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

  5. Mushroom + oniontop 10% of all pairs
    Smell alikemoderate
    Cooked together10,626 recipes

    Shared aroma: 2,4-decadienal (seaweed).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Beef kidney
Forms the main meat, cooked through by frying in flour-dredged slices.
Flour
Coats the slices for browning and thickens the gravy with melted butter.
Butter
Fats the pan and forms the base for the flour-thickened gravy.
Mushroom catsup, lemon juice, or vinegar
Adds acidity that brightens the rich, savory gravy.

The step that matters

Simmering the gravy after adding boiling water. Flour must be cooked in the melted butter and simmered briefly so it thickens smoothly and loses its raw starchy taste. Adding the liquid to the roux while stirring prevents lumps.

Swap the onion

The recipe marks onion as optional. How well each one fits the dish's main ingredients (beef, pepper, flour, butter, mushroom):

  1. Shallotfits better
  2. Chivefits about as well
  3. Potatofits about as well
  4. Onionthe original

Fit is the average pairing score against beef, pepper, flour, butter, mushroom. 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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