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Gruel

A simple oatmeal gruel made by soaking oats, extracting flour, and boiling the liquid with optional milk, butter, or sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Gruel

Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Gruel

Ingredients

Directions

Prepare

  1. Place oatmeal in a basin, pour cold water over it, and let it soak for 20 to 30 minutes.

  2. Press the oatmeal with a spoon to extract the flour, then pour the liquid into a pan, leaving the meal behind.

Cook

  1. Stir the mixture continuously until it boils.

  2. Reduce heat and boil slowly for 16 to 20 minutes, adding a pinch of salt.

  3. For a richer flavor, use milk instead of water, or a mix of both.

Serve

  1. If desired, add butter or sugar 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.

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. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

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

    Shared aroma: guaiacol (smoky, sweet).

  3. Milk + sugartop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

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

Milk and sugar barely smell alike, yet cooks put them together in 77,875 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
Forms the body of the gruel as its starch thickens into a soft, porridge-like liquid.
Water
Hydrates the oatmeal so its starch can release and thicken the liquid when boiled.
Milk
Adds richness and a creamier texture, and a milder, sweeter flavor than water.

The step that matters

Stir the mixture continuously until it boils. Oat starch settles and can scorch on the bottom of the pan while heating, so constant stirring keeps the mixture smooth and prevents burning.

“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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