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Bean or Pea Soup

A simple soup made from beans or peas, stock, pepper, sea salt, and onion.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Beans and onion match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 5,242 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Bean or Pea Soup

Ingredients

Directions

  1. Soak the beans or peas overnight.

  2. Boil the soaked beans or peas until soft.

  3. Season with pepper, coarse sea salt, and chopped onion.

  4. Serve hot.

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

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

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

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

  3. Pepper + oniontop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 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 or peas
Provide the main body of the soup, and their starch thickens the liquid as they soften.
Stock
Forms the liquid base of the soup and carries its savory flavor.
Onion
Adds aroma and savory depth to the finished soup.

The step that matters

Boil the soaked beans or peas until soft. Dried legumes stay firm and can taste starchy or raw if undercooked. Thorough boiling softens their cell walls and starches so they blend into a smooth, tender soup, and it also destroys natural toxins present in raw beans.

Swap the onion

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

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

Fit is the average pairing score against beans, 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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