Why it works: Onion and olive are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 29,779 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Olive Sauce
Ingredients
Directions
Brown the butter in a saucepan.
Add the flour and stir well.
Slowly add the water or stock while stirring.
Season with minced onion, salt, and pepper.
Finally, add the chopped olives.
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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Onion + olivetop 8% of all pairsSmell alikemoderateCooked together29,779 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + olivetop 11% of all pairsSmell alikemoderateCooked together30,263 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Browning in the pan adds a nutty, toasted flavor and rich fat to the sauce.
- Flour
- Thickens the liquid into a smooth sauce as it cooks with the butter and water.
- Water or stock
- Forms the liquid base that the flour thickens into a pourable sauce.
- Chopped olives
- Add salty, briny flavor and bits of texture to the finished sauce.
The step that matters
Adding the water or stock slowly while stirring. Adding liquid gradually while stirring keeps the flour dispersed, so the sauce becomes smooth instead of lumpy.
Swap the onion
How well each one fits the dish's main ingredients (butter, flour, pepper, olive):
- Capsicumfits better
- Eggplantfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against butter, flour, pepper, olive. 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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