Why it works: Milk and flour 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 ↓
Thick Milk
Ingredients
Directions
Make the mixture
Pour the milk into a basin and let it cool.
Break up the flour with a small quantity of cold milk.
Gradually add the rest of the milk while stirring to keep it smooth.
Cook and serve
Put the mixture into a pan and bring it slowly to a boil, stirring continuously.
Boil for ten minutes and serve hot.
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.
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Milk + sugartop 18% of all pairsSmell alikelowCooked together77,875 recipes
Shared aroma: 2-nonenal (fatty, green).
Milk and flour 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
- Milk
- Forms the liquid base that the flour thickens into a smooth sauce.
- Flour
- Its starch swells when heated in liquid, thickening the milk.
- Sugar
- Adds sweetness to the thickened milk.
The step that matters
Mixing the flour into cold milk before heating. Starch granules clump when dropped into hot liquid and form lumps. Dispersing the flour in cold milk first lets each granule separate, so it swells evenly as the mixture heats and thickens smoothly.
“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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