Why it works: Capers and sauce work together. They rank in the top 5% of all ingredient pairs, and 678 recipes mention both. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
The recipe
Ingredients
Contains: egg, milk, fish (auto-detected from the ingredients and method; we can miss things, so check labels)
Also mentioned in the method: egg yolk
Directions
Prepare the base
Chop the French capers and truffles very finely.
In a small saucepan, combine the chopped capers, truffles, garlic, salad oil, pepper, and nutmeg.
Fry lightly on the stove for 2–3 minutes.
Moisten with white wine.
Bring to a boil for 3 minutes.
Make the sauce
Add Velouté sauce, bay leaf, and thyme.
Stir until boiling.
Reduce heat and let simmer, skimming as needed.
Add another glass of wine.
Reduce the sauce.
Thicken with 3 egg yolks.
Pour into a bain-marie.
Finish and serve
Mix in chopped blanched chives, parsley, tarragon, anchovy butter, and lemon juice.
Serve.
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 aroma chemistry they share, and how many recipes mention both.
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Capers + saucetop 5% of all pairsAroma overlapmoderateMentioned together678 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Pepper + thymetop 3% of all pairsAroma overlapstrongMentioned together11,585 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Nutmeg + thymetop 3% of all pairsAroma overlapstrongMentioned together1,907 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
White wine + thymetop 4% of all pairsAroma overlapmoderateMentioned together1,495 recipes
Shared aroma: myrcene (balsamic, herbaceous).
-
Garlic + thymetop 4% of all pairsAroma overlapmoderateMentioned together5,608 recipes
Shared aroma: beta-phellandrene (minty, terpene).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Truffles
- Provide the main earthy aroma that defines the sauce.
- White wine
- Adds acidity and depth as it reduces into the sauce.
- Velouté sauce
- Forms the thick base that the sauce is built on.
- Egg yolks (in the method)
- Thicken the sauce and give it a smooth, rich body.
- French capers
- Add a sharp, briny acidity that cuts through the richness.
- Anchovy butter
- Adds savory depth and salty richness at the finish.
The step that matters
Thicken with egg yolks. Egg yolks set when heated, so the sauce must be kept below a simmer after adding them. Boiling will curdle the yolks and leave the sauce grainy instead of smooth.
Flavor stand-ins for the capers
How well each one fits the dish's main ingredients (truffle, garlic, pepper, nutmeg, white wine, sauce, thyme):
- Marjorambetter flavor fit
- Parsleybetter flavor fit
- Winter savorybetter flavor fit
- Capersthe original
Fit is the average pairing score against truffle, garlic, pepper, nutmeg, white wine, sauce, thyme. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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