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Black Bean Soup

A hearty soup made with black beans, soup bone, onion, lemon, pepper, salt, and Worcestershire sauce.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Lemon and pepper 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

Cook

  1. Boil the soup bone, black beans, and chopped onion together for 6 hours.

Finish and serve

  1. Strain the mixture and add pepper, salt, and Worcestershire sauce to taste.

  2. Slice the lemon and place it on top when 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. Lemon + peppertop 3% of all pairs
    Smell alikestrong
    Cooked together27,047 recipes

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

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

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

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

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

  4. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

  5. Beans + lemontop 12% of all pairs
    Smell alikestrong
    Cooked together1,474 recipes

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

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

What each ingredient does

Black beans
Break down during long cooking to thicken the broth and give it body.
Soup bone
Releases collagen and savory flavor into the liquid, adding body and richness.
Onion
Adds aromatic sweetness and depth as it softens in the simmering liquid.
Lemon
Adds bright acidity that lifts the rich, earthy flavor of the soup.

The step that matters

Long, gentle boil. Six hours of cooking is what softens the beans and draws collagen from the bone into the liquid. A hard, rolling boil can break the beans apart and cloud the broth.

Swap the lemon

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

  1. Avocadofits better
  2. Limefits better
  3. Mangofits about as well
  4. Lemonthe original

Fit is the average pairing score against beans, onion, pepper, sauce. 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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