Why it works: Watercress and capers share more aroma than cooks usually use. They rank in the top 1% of all ingredient pairs, and cooks put them together in 60 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Russian Sauce
Ingredients
Directions
Pound together watercress, parsley, chives, gherkins, egg yolks, anchovies, capers, and garlic.
Add the same weight of butter and work into a paste.
Add lemon juice until smooth and creamy.
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.
-
Watercress + caperstop 1% of all pairsSmell alikestrongCooked together60 recipes
Shared aroma: coumarin (sweet, hay).
-
Watercress + chivetop 1% of all pairsSmell alikestrongCooked together97 recipes
Shared aroma: coumarin (sweet, hay).
-
Chive + caperstop 1% of all pairsSmell alikestrongCooked together245 recipes
Shared aroma: coumarin (sweet, hay).
-
Parsley + caperstop 1% of all pairsSmell alikestrongCooked together1,550 recipes
Shared aroma: coumarin (sweet, hay).
-
Chive + garlictop 1% of all pairsSmell alikestrongCooked together1,149 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Adds fat and richness, binding the herbs and yolks into a smooth, creamy paste.
- Egg yolks
- Emulsify with the butter and herbs, giving the sauce a creamy, thick body.
- Anchovies
- Add a salty, savoury depth that rounds out the herbs and capers.
- Capers
- Add sharp, briny acidity that brightens the rich butter.
- Gherkins
- Add tangy acidity and a crisp, briny bite to the sauce.
The step that matters
Working the butter into the paste. Butter must be worked in gradually so it emulsifies with the pounded herbs and yolks; adding it too fast or too cold can leave the sauce greasy and split rather than smooth and creamy.
Swap the clove
How well each one fits the dish's main ingredients (watercress, parsley, chive, egg, capers, garlic, butter):
- Tarragonfits better
- Thymefits better
- Dillfits better
- Clovethe original
Fit is the average pairing score against watercress, parsley, chive, egg, capers, garlic, butter. 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.
You might also like
The 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.
Hot Lemon Cream Sauce11 recipes
Wine Sauce (for stewed fruit)186 recipes
Caper Sauce180 recipes
Brown Sauce141 recipes