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Green Pea Soup

A creamy soup made from green peas, onion, stock, butter, flour, milk, and cream, seasoned with salt and pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 9 ingredients
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Green Pea Soup

Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Green Pea Soup

Ingredients

Directions

Make the soup base

  1. Cover the peas with water and boil with the onion until they can be easily mashed.

  2. Mash the peas and add 2 cups of stock or water.

  3. In a separate pan, cook the butter and flour together until smooth but not browned.

Finish and serve

  1. Add the butter and flour mixture to the peas, then stir in the milk and cream.

  2. Season with salt and pepper.

  3. Bring the soup to a boil.

  4. Strain the soup.

  5. Serve.

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.

Photo for illustrative purposes only · Contact us to use it

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. Butter + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  2. Butter + creamtop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

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

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

  4. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Peas + oniontop 13% of all pairs
    Smell alikemoderate
    Cooked together5,460 recipes

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

Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Green peas
Provide the main body and flavor of the soup once boiled and mashed.
Butter and flour
Cooked together into a roux that thickens the soup smoothly.
Cream
Adds richness and a silky texture to the finished soup.
Milk
Adds moisture and mild creaminess, softening the soup's body.

The step that matters

Cooking the butter and flour without browning. The roux must cook until smooth but stay pale, because it thickens the soup through starch. Browning changes its flavor and color, and undercooked flour leaves a raw, pasty taste.

Swap the peas

How well each one fits the dish's main ingredients (onion, butter, flour, cream, milk, pepper):

  1. Almondfits better
  2. Chestnutfits better
  3. Cashew nutfits better
  4. Peasthe original

Fit is the average pairing score against onion, butter, flour, cream, milk, 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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