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 ↓
Anchovy Sauce
Ingredients
Directions
Beat the anchovies in a mortar with the butter until smooth.
Transfer the mixture to a saucepan and add water, vinegar, and flour.
Stir over heat until thickened, then strain through a coarse 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.
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).
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Butter + vinegartop 23% of all pairsSmell alikemoderateCooked together13,513 recipes
Shared aroma: isoamyl acetate (banana, pear).
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Vinegar + flourtop 27% of all pairsSmell alikemoderateCooked together8,652 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
- Anchovies
- Dissolve into the butter to give the sauce a deep, savory flavor.
- Butter
- Adds richness and a smooth, silky body to the sauce.
- Flour
- Thickens the sauce as it heats with the liquid.
- Vinegar
- Adds sharpness that balances the richness of the butter and anchovies.
The step that matters
Stir over heat until thickened. Flour needs to be heated with the liquid long enough to swell and thicken; stopping too early leaves a thin sauce with a raw floury taste, while overheating can make it lumpy or scorch on the pan bottom.
“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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