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Barley Gruel

A simple porridge made by cooking barley flour in milk or water.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Barley and flour work together. They rank in the top 13% of all ingredient pairs, and cooks put them together in 582 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Barley Gruel

Ingredients

Directions

Mix and combine

  1. Mix barley flour with cold milk or water.

  2. Gradually add the mixture to the hot liquid.

Cook and strain

  1. Cook directly over the flame for 5 minutes.

  2. Cook in a double boiler for 1 hour.

  3. Strain 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. Barley + flourtop 13% of all pairs
    Smell alikemoderate
    Cooked together582 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Barley + milktop 14% of all pairs
    Smell alikemoderate
    Cooked together598 recipes

    Shared aroma: ethyl octanoate (fruity).

  3. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Flour and milk barely smell alike, yet cooks put them together in 78,219 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

Barley flour
Provides starch that thickens the liquid as it heats and gelatinizes.

The step that matters

Gradually add the mixture to the hot liquid. Starch granules swell as they heat, so if the flour mixture is dumped in all at once, the outer granules hydrate and clump before the rest can disperse. Adding it slowly to hot liquid helps the starch mix in evenly and keeps the gruel smooth.

“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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