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Black Bean Soup

A hearty soup made from black turtle beans, stock or beef, onions, lemon, and hard-boiled eggs.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 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 ↓

Black Bean Soup

Ingredients

Directions

Prepare the beans

  1. Wash the beans in cold water and soak overnight.

  2. Drain the beans and place them in a soup kettle with boiling water. If using beef, add it now.

  3. Cover and simmer gently for 2 hours.

Make and finish the soup

  1. Add another pint of boiling water and press the mixture through a puree sieve.

  2. Wash the kettle, return the soup to it, and bring to a boil. Season with salt and pepper.

  3. If the soup is too thick, add enough water to achieve the desired consistency.

  4. Add the grated onion and pour the soup into a tureen over sliced hard-boiled eggs and sliced lemon.

  5. If using wine, add it and serve immediately. For extra flavor, let the eggs and lemon sit in the wine for 15 minutes before serving.

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

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

  3. Beans + oniontop 7% of all pairs
    Smell alikestrong
    Cooked together5,242 recipes

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

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

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

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

Black turtle beans
Form the body of the soup once cooked and pressed into a thick purée.
Stock or lean beef
Adds savory, meaty depth to the soup's base flavor.
Hard-boiled eggs
Add rich, mild body and texture as a garnish in the tureen.
Lemon
Adds bright acidity that cuts through the earthy beans.
Wine
Adds acidity and aromatic depth when steeped with the eggs and lemon.

The step that matters

Simmer gently and press the beans through a sieve. Gentle simmering softens the beans evenly without breaking them apart into a cloudy, starchy mush. Pressing the cooked beans through a sieve gives the soup a smooth, thick texture.

Swap the onion

How well each one fits the dish's main ingredients (beans, beef, pepper, lemon, wine, egg):

  1. Tomatofits better
  2. Asparagusfits better
  3. Spinachfits better
  4. Onionthe original

Fit is the average pairing score against beans, beef, pepper, lemon, wine, egg. 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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