Why it works: Cucumber and capers match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 303 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Drawn Butter
Ingredients
Directions
Make the sauce
Combine flour, water, salt, and pepper in a small pan.
Stir until it boils.
Remove from heat.
Add butter, cold water, and lemon juice or vinegar.
Keep the sauce warm on the stove until needed.
Add optional extras
Add small chopped mushrooms while boiling for a thicker sauce.
Mix in chopped hard-boiled eggs, pickled cucumbers, or capers after cooking.
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.
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Cucumber + caperstop 3% of all pairsSmell alikestrongCooked together303 recipes
Shared aroma: coumarin (sweet, hay).
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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Lemon + caperstop 5% of all pairsSmell alikestrongCooked together1,222 recipes
Shared aroma: coumarin (sweet, hay).
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Flour + caperstop 6% of all pairsSmell alikestrongCooked together1,024 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + mushroomtop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Thickens the water as its starch swells on heating, giving the sauce body.
- Butter
- Adds fat for richness, smooth mouthfeel, and a glossy finish.
- Lemon juice or vinegar
- Adds acidity that brightens the buttery sauce and balances its richness.
The step that matters
Adding the butter off the heat. Butter added to a boiling sauce can separate and turn greasy. Removing the pan from heat first and stirring in the butter gradually keeps the fat emulsified and the sauce smooth.
Swap the cucumber
The recipe marks cucumber as optional. How well each one fits the dish's main ingredients (flour, pepper, butter, lemon, mushroom, egg, capers):
- Shallotfits better
- Spinachfits better
- Chivefits better
- Cucumberthe original
Fit is the average pairing score against flour, pepper, butter, lemon, mushroom, egg, capers. 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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