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Thickened Milk

A thickened milk made by adding cooled flour to boiled milk.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 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 ↓

Thickened Milk

Ingredients

Directions

Prepare the flour

  1. Tie the flour in a strong cotton cloth and boil it in water for 4 hours.

  2. Remove the flour from the cloth and let it cool.

Make the thickened milk

  1. Boil the milk in a double boiler.

  2. Thicken the milk with 1 tablespoon of the cooled flour, mixed smooth with a little cold milk.

  3. Season with salt and sugar if desired.

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).

  2. Flour + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

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

    Shared aroma: 2-nonenal (fatty, 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

Flour
Its starch swells in hot liquid and thickens the milk.
Milk
Forms the liquid base that the thickened starch turns into a creamy texture.

The step that matters

Mixing the cooled flour smooth with cold milk. Starch granules clump when added dry or to hot liquid. Dispersing them first in cold milk lets each granule separate and hydrate evenly, so the milk thickens smoothly without lumps.

“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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