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Pea-Soup

A hearty soup made with split peas, water, pickled pork, onion, carrots, salt, and pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Carrot and pepper match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 14,555 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Pea-Soup

Ingredients

Directions

The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Prepare

  1. Rinse the split peas and soak them in water for a few hours.

Make the soup

  1. In a large pot, combine the soaked peas, water, and the piece of pickled pork.

  2. Bring to a boil, then reduce heat and simmer for about 1 hour.

  3. Add the chopped onion and carrots.

  4. Continue to simmer until the peas are soft.

  5. Remove the pork, chop it, and return it to the soup.

  6. Season with salt and pepper to taste 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. Carrot + peppertop 6% of all pairs
    Smell alikestrong
    Cooked together14,555 recipes

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

  2. Onion + carrottop 6% of all pairs
    Smell alikemoderate
    Cooked together21,601 recipes

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

  3. Peas + carrottop 7% of all pairs
    Smell alikemoderate
    Cooked together2,994 recipes

    Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).

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

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

  5. Onion + peppertop 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

Split peas
Break down during simmering to thicken the soup and give it body.
Pickled pork
Adds salty, savory flavor and richness to the broth as it simmers.
Onion
Adds aromatic sweetness and depth as it softens in the broth.
Carrots
Add gentle sweetness and color while softening into the soup.

The step that matters

Simmer until the peas are soft. Split peas need sustained gentle simmering to break down fully. Stopping early leaves them firm and the soup thin and grainy, while a hard boil can scorch the bottom of the pot.

Swap the peas

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

  1. Beansfits better
  2. Sesamefits better
  3. Black-eyed peafits better
  4. Peasthe original

Fit is the average pairing score against pork, onion, carrot, 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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