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Beef Kidneys with Onions and Squash

Roasted beef kidneys with onions and squash, seasoned and cooked until tender.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Beef and onion are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,092 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Beef Kidneys with Onions and Squash

Ingredients

Directions

The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare

  1. Preheat oven to 350°F (175°C).

Roast

  1. In a roasting pan, combine the beef kidneys, squash, onions, water, and butter. Season to taste.

  2. Roast in the oven until the kidneys are cooked through and the vegetables are tender.

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

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

  2. Onion + buttertop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

  3. Beef + buttertop 16% of all pairs
    Smell alikemoderate
    Cooked together10,847 recipes

    Shared aroma: 2-furfurylthiol (coffee, roasted).

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

What each ingredient does

Beef kidneys
Form the main protein, becoming tender and cooked through during slow oven roasting.
Butter
Adds fat and richness, helping the vegetables and kidneys brown and carry flavor.
Onions
Soften and turn sweet as they roast, adding savory depth to the pan.
Squash
Becomes tender and sweet as it roasts, adding moisture and body to the dish.

The step that matters

Roasting until the kidneys are cooked through. Kidney is dense and can turn tough if overcooked, yet undercooked meat is unsafe. Roasting gently at the stated oven temperature and checking that the meat is cooked through, with the vegetables tender, helps achieve both.

Swap the onion

How well each one fits the dish's main ingredients (beef, butter):

  1. Potatofits about as well
  2. Onionthe original
  3. Chivefits less well
  4. Tomatofits less well

Fit is the average pairing score against beef, butter. 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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