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Kidney Beans

Boiled kidney beans seasoned with salt, pepper, and butter.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Pepper and butter are a kitchen classic. They rank in the top 21% of all ingredient pairs, and cooks put them together in 85,593 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Kidney Beans

Ingredients

Directions

Prepare the beans

  1. Soak the beans overnight in cold water.

  2. Drain and replace with tepid water.

Cook and serve

  1. Cook the beans in plenty of cold water for 2.5 hours until the skins begin to break.

  2. Drain the water, cover the beans with a clean cloth, and keep warm.

  3. Season with salt and pepper, stir in butter, 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 + buttertop 21% of all pairs
    Smell alikemoderate
    Cooked together85,593 recipes

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

  2. Kidney beans + buttertop 22% of all pairs
    Smell alikemoderate
    Cooked together186 recipes

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

  3. Kidney beans + peppertop 24% of all pairs
    Smell alikelow
    Cooked together718 recipes

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

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

What each ingredient does

Kidney beans
Form the dish's main body, becoming tender and creamy through long soaking and simmering.
Butter
Adds richness and a smooth, glossy finish to the cooked beans.

The step that matters

Cooking the beans until the skins begin to break. Beans must cook long enough to become fully tender; stopping early leaves them firm inside, while the skins splitting signals the starch has softened the interior.

Swap the kidney beans

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

  1. Walnutfits better
  2. Black-eyed peafits better
  3. Almondfits better
  4. Kidney beansthe original

Fit is the average pairing score against pepper, 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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