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 and simmer
Cut up the fish and place it in a pot with the other ingredients.
Add the water and bring to a simmer.
Simmer for 2 hours, skimming the surface carefully.
Strain
Strain the stock through a fine sieve.
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
- White fish trimmings
- Provide the main flavour and gelatin-rich body that give the stock its character.
- Onions
- Add sweetness and savoury depth to the stock as they simmer.
- Carrots
- Contribute gentle sweetness and aroma to the stock.
- Sweet herbs
- Add aromatic fragrance that flavours the liquid during simmering.
The step that matters
Skimming the surface during simmering. Impurities and coagulated proteins rise to the surface as the stock simmers. Skimming them off keeps the stock clear and free of a bitter or cloudy taste.
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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