Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and 124,287 recipes mention both. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Brown Sauce
Ingredients
Directions
Make the roux
In a saucepan, melt the butter over medium heat.
Add the flour and stir continuously until the mixture is a nice brown color, being careful not to burn it.
Finish the sauce
Gradually add the stock while stirring until the mixture reaches a boil.
Boil for about five minutes, then skim off any fat from the top.
Strain the sauce through a fine sieve.
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 aroma chemistry they share, and how many recipes mention both.
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Butter + flourtop 12% of all pairsAroma overlaplowMentioned together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour share little aroma chemistry, yet 124,287 recipes mention both: they likely 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
- Carries the flour and adds richness and fat to the sauce.
- Flour
- Thickens the stock and browns to add a toasted, nutty flavor.
- Stock
- Forms the liquid base, providing most of the sauce's savory flavor.
The step that matters
Browning the flour. Flour that is cooked until brown develops toasted, nutty flavor and color, but it can scorch quickly and turn bitter if left unattended. Stirring constantly and watching closely keeps it an even brown.
“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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