Why it works: Carrot and onion are a kitchen classic. They rank in the top 6% of all ingredient pairs, and cooks put them together in 21,601 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Bouillabaisse — Marseillaise or Provengal Fish Soup
Ingredients
Directions
Make the shrimp stock
Remove shells from shrimps and boil the shells in water for 20 minutes.
Strain the liquid from the shells and let it settle. Pour off the clear liquid, discarding the sediment.
Build the broth
In a stewpan, brown slices of carrot and onion in butter with a dust of flour until tender.
Gradually dilute the mixture with water or broth, adding the clear shrimp liquid.
Season with sugar, herbs, white wine, and nutmeg or cloves.
Thicken with arrowroot, boil while stirring, and strain through a colander.
Finish and serve
Add the picked shrimps and pieces of fish, heating them through without boiling.
Serve with toast-dice.
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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Carrot + oniontop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Shrimp + buttertop 11% of all pairsSmell alikemoderateCooked together2,931 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
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Fish + buttertop 12% of all pairsSmell alikemoderateCooked together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Fish + shrimptop 13% of all pairsSmell alikemoderateCooked together252 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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
- Assorted fish
- Provides the main body of flavor and the substance of the dish.
- Shrimps
- Contribute sweet, savory shellfish flavor through both the shells in the stock and the meat added at the end.
- Butter
- Carries flavor from the browned vegetables and adds richness to the broth.
- Onion
- Browns in butter to add sweetness and savory depth to the base.
- White wine
- Adds acidity and aromatic complexity to the broth.
- Arrowroot
- Thickens the broth into a smooth, glossy body without clouding it.
The step that matters
Heating the fish and shrimp without boiling. Boiling toughens delicate fish and shrimp proteins, making them dry and rubbery. Gentle heat keeps them tender and moist.
Swap the carrot
How well each one fits the dish's main ingredients (fish, whiting, shrimp, butter, onion, flour, sugar):
- Chivefits better
- Shallotfits better
- Potatofits better
- Carrotthe original
Fit is the average pairing score against fish, whiting, shrimp, butter, onion, flour, sugar. 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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