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English Pea Porridge

A hearty soup made from split peas, onions, celery, potatoes, leeks, and butter, thickened optionally with flour.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Onion and potato are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

English Pea Porridge

Ingredients

Directions

Prepare the base

  1. Slice the onions and chop the celery.

  2. In a frying pan, melt the butter and sauté the onions and celery until golden brown.

  3. Transfer the sautéed mixture to a soup kettle and add the split peas, water, potatoes, and leeks.

Cook and strain

  1. Cook slowly for one hour, skimming off any foam at the first boil.

  2. If the peas are not tender, continue boiling until they can be easily pressed through a sieve.

  3. Press the mixture through a puree sieve and return it to the kettle.

Finish and serve

  1. Bring to a boil, season to taste, and serve.

  2. If the porridge is too thin, mix 1 tablespoon of butter with 2 tablespoons of flour to a smooth paste and stir into the hot porridge until it thickens.

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. Onion + potatotop 3% of all pairs
    Smell alikemoderate
    Cooked together9,023 recipes

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

  2. Celery + leektop 4% of all pairs
    Smell alikestrong
    Cooked together1,093 recipes

    Shared aroma: coumarin (sweet, hay).

  3. Onion + leektop 4% of all pairs
    Smell alikestrong
    Cooked together1,326 recipes

    Shared aroma: ethyl butyrate (apple, fruity).

  4. Potato + leektop 6% of all pairs
    Smell alikemoderate
    Cooked together30 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

  5. Celery + potatotop 7% of all pairs
    Smell alikemoderate
    Cooked together2,047 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

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

What each ingredient does

Split peas
Form the bulk of the porridge and, once cooked and pressed, give it its body and thick texture.
Butter
Adds richness and carries the flavor of the sautéed onions and celery at the start.
Onions
Browning in butter builds sweet, savory depth as the base flavor of the porridge.
Potatoes
Break down during long simmering to add starch, helping thicken and smooth the porridge.
Leeks
Add a mild onion-like sweetness and aroma to the simmered base.
Flour
Thickens the hot porridge when mixed into butter first, forming a paste that disperses smoothly.

The step that matters

Skimming the foam at the first boil. Foam carries impurities and proteins that can cloud the broth and taint flavor, so removing it early keeps the porridge clean-tasting and smooth.

Swap the peas

How well each one fits the dish's main ingredients (onion, celery, butter, potato, leek, flour):

  1. Lentilsfits better
  2. Beansfits better
  3. Chickpeafits better
  4. Peasthe original

Fit is the average pairing score against onion, celery, butter, potato, leek, flour. 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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