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To Make Gruel

A simple gruel made by boiling oatmeal or barley with water, butter, and optional sweeteners.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 9 ingredients
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To Make Gruel

Why it works: Nutmeg and barley match in chemistry and in kitchens. They rank in the top 9% of all ingredient pairs, and cooks put them together in 136 recipes. Both carry maltol, which smells caramel, sweet. The science ↓

To Make Gruel

Ingredients

Directions

Make the oatmeal gruel

  1. Mix the oatmeal or groats with cold water.

  2. Add boiling water and boil for 10 minutes, stirring constantly.

  3. Stir in butter and sweeten with sugar, nutmeg, or ginger, or add a pinch of salt if not sweetened.

Barley gruel variation

  1. For barley gruel, boil pearl barley in 2 quarts of water until reduced by half, then strain.

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. Nutmeg + barleytop 9% of all pairs
    Smell alikestrong
    Cooked together136 recipes

    Shared aroma: maltol (caramel, sweet).

  2. Butter + nutmegtop 16% of all pairs
    Smell alikemoderate
    Cooked together24,377 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  3. Butter + sugartop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

  4. Sugar + nutmegtop 20% of all pairs
    Smell alikelow
    Cooked together23,364 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

  5. Butter + barleytop 20% of all pairs
    Smell alikemoderate
    Cooked together481 recipes

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

Sugar and nutmeg barely smell alike, yet cooks put them together in 23,364 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

Oatmeal or groats
Thickens the liquid as its starch gelatinises, giving the gruel body.
Butter
Adds fat for a richer mouthfeel and rounder flavour.
Pearl barley
Releases starch when boiled, thickening the liquid in the barley version.

The step that matters

Stirring while boiling the oatmeal. Oatmeal can settle and scorch on the bottom of the pan while it boils. Constant stirring keeps particles suspended and heats the starch evenly, so it thickens smoothly instead of clumping or sticking.

Swap the nutmeg

The recipe marks nutmeg as optional. How well each one fits the dish's main ingredients (butter, sugar, barley):

  1. Cinnamonfits better
  2. Nutmegthe original
  3. Thymefits less well
  4. Capersfits less well

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

More gruel recipes

Oatmeal 121Cornmeal 74Barley 51Indian Meal 46Arrowroot 29Water 29 See all 37 →

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