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Thin Porridge or Gruel

A light oatmeal gruel made by simmering oatmeal in water or milk, optionally enriched with butter, cream, sugar, spices, or egg yolks.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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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 ↓

Thin Porridge or Gruel

Ingredients

Directions

Prepare

  1. In a pot, bring the water or milk to a near boil.

  2. Mix the oatmeal with a little cold water and salt until smooth.

  3. Gradually stir the oatmeal mixture into the boiling water or milk.

  4. Return the pot to the heat and boil for a few minutes.

Finish and serve

  1. If desired, skim and strain the mixture.

  2. For a smoother texture, simmer longer or steep the oatmeal in cold water for several hours before cooking.

  3. To enrich, add a little butter or cream.

  4. For a thinner gruel, let the coarser oatmeal settle, pour off the liquid, and boil it longer.

  5. Flavor with sugar, nutmeg, ginger, or cinnamon as desired.

  6. For added richness, beat the yolks of eggs with a little gruel and stir in, ensuring the mixture does not boil after adding the eggs.

  7. Serve the gruel in bowls, with or without toasted bread.

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

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

  2. Butter + eggtop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

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

    Shared aroma: guaiacol (smoky, sweet).

  4. Milk + eggtop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

  5. 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
Thickens the liquid as its starch swells and gelatinises during boiling.
Eggs
Egg yolks add richness and body by thickening gently when stirred in.
Butter or cream
Adds fat, giving the gruel a richer mouthfeel and smoother texture.

The step that matters

Adding the egg yolks. Yolks thicken by coagulating with heat. If the mixture boils after they go in, they can scramble and turn grainy, so stir them in off the heat or keep it below a boil.

“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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