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
Melt the butter in a saucepan over medium heat.
Stir in the flour and cook until the mixture is lightly browned.
Gradually add the water or milk, stirring constantly until the sauce thickens.
For a richer sauce, stir in additional butter just before serving.
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).
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
- Butter
- Adds fat and rich flavor, and helps form the base of the sauce.
- All-purpose flour
- Cooked with the butter, it forms a roux that thickens the liquid into a sauce.
- Water or milk
- Forms the liquid that the roux thickens; milk adds creaminess and a mild sweetness.
The step that matters
Adding the liquid to the roux. Adding the liquid gradually while stirring constantly keeps the flour smoothly dispersed, which prevents lumps and lets the starch thicken the sauce evenly.
“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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