Why it works: Parsley and thyme match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 9,057 recipes. Both carry cuminaldehyde, which smells Spicy, cumin. The science ↓
Fish Stock
Ingredients
Directions
Combine all ingredients in a clean stewpan.
Simmer gently for about 1 hour, starting from when the stock begins to cook.
Skim and strain the stock into a basin.
Use immediately for thick soups and sauces, or clarify with egg whites and shells for clear stock.
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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Parsley + thymetop 1% of all pairsSmell alikestrongCooked together9,057 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
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Onion + thymetop 7% of all pairsSmell alikemoderateCooked together11,171 recipes
Shared aroma: coumarin (sweet, hay).
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Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Mace + thymetop 14% of all pairsSmell alikemoderateCooked together2,113 recipes
Shared aroma: alpha-pinene (pine, turpentine).
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Mace + parsleytop 15% of all pairsSmell alikemoderateCooked together4,268 recipes
Shared aroma: myristicin (spice, warm).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- White fish, including bones and trimmings
- Provides the gelatin-rich body and the core flavour of the stock.
- Onion
- Adds sweetness and savoury depth to the stock.
- Water
- Acts as the liquid that extracts flavour from the fish and aromatics.
The step that matters
Simmer gently. Keeping the stock at a gentle simmer rather than a hard boil keeps it clear and prevents cloudiness and fat from emulsifying into the liquid. Skimming during cooking removes impurities that would otherwise muddy the flavour.
Swap the mace
How well each one fits the dish's main ingredients (fish, onion, parsley, thyme):
- Marjoramfits better
- Fennelfits better
- Tarragonfits better
- Macethe original
Fit is the average pairing score against fish, onion, parsley, thyme. 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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