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Bean Soup

A hearty soup made with beans, salt pork, tomatoes, onion, and butter.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Beans and tomato match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 2,713 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Bean Soup

Ingredients

Directions

Prepare

  1. Soak the beans overnight.

Cook and finish

  1. The next morning, cook the beans in 1 gallon of cold water with the salt pork, salt, and pepper for 2 hours over low heat.

  2. Add the can of tomatoes and the onion, then cook for an additional 4 hours.

  3. Stir in the butter and strain 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. Beans + tomatotop 1% of all pairs
    Smell alikestrong
    Cooked together2,713 recipes

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

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

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

  3. Pepper + tomatotop 7% of all pairs
    Smell alikemoderate
    Cooked together17,923 recipes

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

  4. Tomato + oniontop 8% of all pairs
    Smell alikemoderate
    Cooked together20,633 recipes

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

  5. Pork + oniontop 10% of all pairs
    Smell alikemoderate
    Cooked together18,214 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

Beans
Provide the main body, and their starch thickens the soup as they soften.
Salt pork
Adds fat and savory, smoky depth to the cooking liquid.
Tomatoes
Add acidity and a rounded, tangy flavor to the soup.
Onion
Contributes aromatic sweetness that builds the soup's base flavor.
Butter
Adds fat for a richer flavor and smoother mouthfeel at the end.

The step that matters

Cooking the beans over low heat. Gentle heat lets beans soften evenly while their skins stay intact. A hard boil can split the skins, break the beans apart, and make the soup cloudy.

Swap the onion

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

  1. Capsicumfits better
  2. Potatofits better
  3. Asparagusfits better
  4. Onionthe original

Fit is the average pairing score against beans, pork, pepper, tomato, 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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