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Haricot Beans

A simple boiled haricot bean dish with butter, flour, and pepper.

From an old cookbook · modernised transcription
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Why it works: Beans and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 4,733 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Haricot Beans

Ingredients

Directions

Prepare

  1. Wash and pick over the haricot beans, then soak them in cold water overnight.

Cook the beans

  1. In a pot, combine the soaked beans with 4 cups of cold water, 1 teaspoon of salt, and 2 teaspoons of butter.

  2. Boil for 3 hours.

  3. Drain the remaining water.

Finish the sauce

  1. Mix the drained water with 2 teaspoons of flour.

  2. Add pepper and salt to taste.

  3. Return the mixture to the beans.

  4. Boil for an additional 10 minutes.

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. Beans + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together4,733 recipes

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

  2. Beans + flourtop 11% of all pairs
    Smell alikemoderate
    Cooked together2,080 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: isobutyraldehyde (malty, green).

  4. Beans + buttertop 19% of all pairs
    Smell alikemoderate
    Cooked together2,799 recipes

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

  5. Flour + peppertop 19% of all pairs
    Smell alikemoderate
    Cooked together50,459 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

Haricot beans
Form the body of the dish and absorb water to become tender during long cooking.
Butter
Adds richness and a smooth, rounded mouthfeel to the cooking liquid.
Flour
Thickens the drained cooking liquid so it clings to the beans.

The step that matters

Returning the thickened liquid to the beans. Flour needs to be fully mixed into the liquid and then simmered so its starch swells and thickens. If it is added lumpy or not boiled through, the sauce stays thin or gritty.

Swap the beans

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

  1. Almondfits better
  2. Black-eyed peafits better
  3. Chestnutfits about as well
  4. Beansthe original

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