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Another Soup of Green Peas

A soup made from shelled peas, water, butter, flour, and seasonings.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Another Soup of Green Peas

Ingredients

Directions

  1. Boil the shelled peas in water until tender.

  2. In a bowl, mix the butter with enough flour to create a smooth paste, then add a little salt, black pepper, and a dust of cayenne pepper.

  3. Stir the butter mixture into the boiling peas until the soup returns to a boil.

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

    Shared aroma: isobutyraldehyde (malty, green).

  2. Peas + peppertop 15% of all pairs
    Smell alikemoderate
    Cooked together5,331 recipes

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

  3. Peas + buttertop 16% of all pairs
    Smell alikemoderate
    Cooked together4,887 recipes

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

  4. Flour + peppertop 19% of all pairs
    Smell alikemoderate
    Cooked together50,459 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Butter + peppertop 21% of all pairs
    Smell alikemoderate
    Cooked together85,593 recipes

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

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

Shelled peas
Form the main body of the soup and give it its green color and flavor.
Butter
Adds richness and fat that carries flavor and a smooth mouthfeel.
Flour
Thickens the soup as it is stirred into the boiling liquid, giving it body.

The step that matters

Stirring the butter-flour paste into the boiling peas. Flour must be mixed into a smooth paste first, because lumps form if it hits hot liquid directly. Stirring while the soup returns to a boil lets the starch hydrate and thicken evenly.

Swap the peas

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

  1. Almondfits better
  2. Black-eyed peafits better
  3. Chestnutfits better
  4. Peasthe original

Fit is the average pairing score against butter, flour, 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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