Why it works: Butter and milk 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 ↓
Butter Sauce
Ingredients
Directions
Prepare
Bring the milk to a boil.
In a separate bowl, mix the flour with a little cold water or cold milk.
Make the sauce
Stir the flour mixture into the hot milk.
Add the butter and sugar, and continue stirring.
Bring the mixture to a boil while stirring constantly.
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.
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 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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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Starch thickens the milk as it heats, giving the sauce body.
- Butter
- Adds fat for richness and smooth mouthfeel in the sauce.
- Sugar
- Adds sweetness and balances the flavor of the milk and butter.
- Milk
- Forms the liquid base that the flour thickens into a sauce.
The step that matters
Stir the flour mixture into the hot milk. Flour dispersed in cold liquid first keeps its starch separated. Stirring it into hot milk while stirring constantly lets the starch swell evenly, preventing lumps and a grainy texture.
“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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