Why it works: Butter and capers are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 1,637 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Caper Sauce
Ingredients
Directions
Combine the melted butter, whole capers, and caper vinegar in a small saucepan.
Stir well to incorporate all ingredients.
Heat gently for a few minutes until warmed through.
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.
-
Butter + caperstop 16% of all pairsSmell alikemoderateCooked together1,637 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Capers + vinegartop 16% of all pairsSmell alikemoderateCooked together1,453 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + vinegartop 23% of all pairsSmell alikemoderateCooked together13,513 recipes
Shared aroma: isoamyl acetate (banana, pear).
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, carrying the flavor and giving the sauce a smooth, silky mouthfeel.
- Whole capers
- Add briny, tangy bite and a salty aroma that give the sauce its character.
- Caper vinegar
- Adds acidity that brightens the buttery sauce and echoes the tang of the capers.
The step that matters
Heat gently. Butter is an emulsion of fat and water. High heat can make it separate into greasy fat and watery solids, or scorch the milk solids, so the sauce turns grainy or bitter. Gentle heat keeps it smooth and warmed through.
Swap the capers
How well each one fits the dish's main ingredients (butter, vinegar):
- Tarragonfits better
- Garlicfits about as well
- Parsleyfits about as well
- Capersthe original
Fit is the average pairing score against butter, vinegar. 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.
More caper sauce recipes
You might also like
Wine Sauce (for stewed fruit)186 recipes
Brown Sauce141 recipes
Dutch Sauce74 recipes
Curry Sauce59 recipesThe free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.