Why it works: Capers and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,550 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Caper Sauce
Ingredients
Directions
Prepare
Mince one-third of the capers very fine and halve the rest.
Make the sauce
Combine the capers in a bowl with melted butter or thickened gravy.
Stir gently to combine, ensuring it doesn't separate.
If desired, add minced herbs or citrus juice for extra flavor.
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 + parsleytop 1% of all pairsSmell alikestrongCooked together1,550 recipes
Shared aroma: coumarin (sweet, hay).
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Parsley + orangetop 10% of all pairsSmell alikestrongCooked together680 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + parsleytop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Capers + buttertop 16% of all pairsSmell alikemoderateCooked together1,637 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Vinegar + parsleytop 16% of all pairsSmell alikemoderateCooked together6,477 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Capers
- Provide the sharp, briny flavor that defines the sauce.
- Vinegar
- Adds acidity that brightens the rich butter and balances the briny capers.
- Butter
- Adds fat for richness and a smooth, glossy texture.
The step that matters
Stir gently to combine. Melted butter is an emulsion of fat and water, and it can separate or turn greasy if it is overworked or too hot. Gentle stirring keeps it smooth and cohesive.
Swap the parsley
The recipe marks parsley as optional. How well each one fits the dish's main ingredients (capers, vinegar, butter, orange):
- Tarragonfits better
- Parsleythe original
- Thymefits about as well
- Dillfits less well
Fit is the average pairing score against capers, vinegar, butter, orange. 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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