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Barley Gruel

A simple barley gruel made by boiling pearl barley, reducing with water, and seasoning with sugar, lemon peel, or wine.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Barley and lemon work together. They rank in the top 13% of all ingredient pairs, and cooks put them together in 484 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Barley Gruel

Ingredients

Directions

Cook the barley

  1. Wash the pearl barley and boil it in 1 pint of water for 10 minutes.

  2. Drain the barley and add 2 quarts of boiling water.

  3. Simmer until the mixture is reduced by half.

Finish the gruel

  1. Strain the gruel and add sugar, lemon peel, or wine to taste.

  2. Simmer for a few more minutes.

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. Barley + lemontop 13% of all pairs
    Smell alikemoderate
    Cooked together484 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  2. Lemon + winetop 13% of all pairs
    Smell alikelow
    Cooked together6,157 recipes

    Shared aroma: decanal (soap, orange peel).

  3. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

  4. Barley + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together755 recipes

    Shared aroma: beta-damascenone (apple, rose).

  5. Barley + winetop 22% of all pairs
    Smell alikemoderate
    Cooked together128 recipes

    Shared aroma: 2-furfurylthiol (coffee, roasted).

Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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

Pearl barley
Its starch thickens the liquid as it cooks and gives the gruel its body.
Sugar
Adds sweetness to balance the plain, starchy flavour of the barley.
Wine
Adds acidity and aroma, lifting the flavour of the gruel.

The step that matters

Simmer until the mixture is reduced by half. Barley starch needs sustained gentle simmering to swell and release thickening power. Stopping too early leaves the gruel thin, while boiling too hard can scorch it on the bottom of the pot.

Swap the lemon

How well each one fits the dish's main ingredients (barley, sugar, wine):

  1. Figfits better
  2. Vanillafits better
  3. Applefits about as well
  4. Lemonthe original

Fit is the average pairing score against barley, sugar, wine. 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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