Why it works: Capers and pepper are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 2,088 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Caper Sauce
Ingredients
Directions
Melt the butter in a saucepan.
Add the capers, vinegar, salt, and pepper to the melted butter.
Stir well and use immediately.
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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Capers + peppertop 12% of all pairsSmell alikemoderateCooked together2,088 recipes
Shared aroma: coumarin (sweet, hay).
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Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + caperstop 16% of all pairsSmell alikemoderateCooked together1,637 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Capers + vinegartop 16% of all pairsSmell alikemoderateCooked together1,453 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Melted butter forms the rich, fluid base that carries the sauce's flavor and mouthfeel.
- Capers
- Their briny, tangy bite cuts through the richness of the butter.
- Vinegar from the capers
- Adds acidity that brightens the buttery sauce and sharpens the caper flavor.
The step that matters
Stir well and use immediately. Melted butter separates as it cools, so the sauce turns greasy and loses its smooth texture if left to sit. Stirring keeps the emulsion-like mix evenly combined while it is still warm.
Swap the capers
How well each one fits the dish's main ingredients (butter, vinegar, pepper):
- Tarragonfits better
- Parsleyfits better
- Thymefits better
- Capersthe original
Fit is the average pairing score against butter, vinegar, pepper. Candidates are from the same food group and used in at least 100 recipes.
“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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