Why it works: Onion and carrot 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 ↓
Fish Stock
Ingredients
Directions
Prepare
Chop the fish and place it in a pot with the other ingredients.
Simmer and strain
Add the water and bring to a simmer for 2 hours.
Skim the surface to remove impurities and strain the stock.
Optional richer stock
For a richer stock, fry the vegetables before adding the water.
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 + carrottop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Lemon + carrottop 9% of all pairsSmell alikestrongCooked together3,351 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Beef + carrottop 10% of all pairsSmell alikemoderateCooked together6,606 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beef + fishtop 14% of all pairsSmell alikemoderateCooked together226 recipes
Shared aroma: 2-undecenal (sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Trimmings of fish
- Provides the core fish flavor that defines the stock.
- Onions
- Adds savory sweetness and aroma, especially when fried first.
- Carrots
- Adds gentle sweetness and body to the stock.
- Lemon
- Adds acidity that brightens the flavor of the stock.
- Beef
- Adds richness and depth of flavor; optional in this recipe.
The step that matters
Skim the surface. Impurities that rise during simmering can cloud the stock and taint its flavor, so removing them keeps the stock clear and clean-tasting.
Swap the lemon
How well each one fits the dish's main ingredients (beef, fish, onion, carrot):
- Coconutfits better
- Limefits about as well
- Lemonthe original
- Avocadofits about as well
Fit is the average pairing score against beef, fish, onion, carrot. 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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