Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Melted Butter Without Boiling
Ingredients
Directions
Beat the butter to a cream.
Add the flour and cold water.
Stir over low heat until thick, but do not let it boil.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 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
- Provides fat and richness, and when creamed it traps air that gives a softer texture.
- Flour
- Thickens the mixture as its starch swells with gentle heating, giving body to the sauce.
- Cold water
- Adds moisture and lets the flour disperse evenly before the mixture thickens.
The step that matters
Stir over low heat without boiling. Flour thickens as its starch swells with heat, but boiling can break the emulsion and cause lumps or a grainy, thin texture. Gentle heat and constant stirring keep the mixture smooth.
“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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