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Gruel of Boiled Flour

A gruel made by boiling flour in water, then mixing the residue with milk or water.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 2 ingredients
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Why it works: Flour and milk are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Gruel of Boiled Flour

Ingredients

Directions

Make the flour bag

  1. Make a bag from white cotton cloth, about 6 inches long and 4 inches wide.

  2. Fill the bag with white flour, pressing it down hard, and tie it up firmly.

Boil and dry the flour

  1. Put the bag into boiling water and boil for 4 hours.

  2. Remove the bag from the water, take out the contents, and discard the wet skin.

Make the gruel

  1. Grate a little of the solid left behind and stir it into a small amount of milk or water.

  2. Cook the mixture in boiling water or milk for about 4 minutes, stirring constantly.

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. 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

White flour
Its starch thickens with liquid and sets into the gruel's body.
Milk or water
Hydrates the grated starch so it can swell and thicken into a gruel.

The step that matters

Stirring constantly while cooking the gruel. Starch granules can clump and scorch on the base of the pan. Constant stirring spreads heat evenly and lets the starch swell smoothly into a uniform gruel.

“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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