Why it works: Leek and thyme match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 360 recipes. Both carry 1-octen-3-ol, which smells mushroom, earthy. The science ↓
Fish Stock
Ingredients
Directions
Prepare
Wash the fish trimmings.
Drain and mash the trimmings with the back of a large spoon.
Place the fish in a stockpot and add the water.
Bring the liquid to a simmer.
Simmer for 5 minutes, skimming off any scum.
Simmer and strain
Add the vegetables and seasonings.
Partially cover the pot.
Simmer for 30 minutes, skimming the surface every 10 minutes.
Remove the pot from the heat.
Remove the fish and vegetables with a spider or slotted spoon.
Strain the stock through a sieve lined with a double layer of dampened cheesecloth.
Cool the stock to room temperature.
Refrigerate for 2–3 days, or freeze for longer.
Nutrition, whole recipe (rough)
Counts 8 of 9 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 8 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Salmon | 100g cooked | 208 |
| Onion | 1 medium (110g) | 44 |
| Wine | 2 tbsp cooking wine (30ml) | 25 |
| Celery | 1 stalk (40g) | 6 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Thyme | 1 tsp dried (1.4g) | 4 |
| Bay Leaf | 1 leaf (0.6g) | 2 |
| Salt | 1 tsp (6g) | 0 |
| Water | not in our table | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
Steps grouped into stages for easier reading; the method is the source's own.
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.
-
Leek + thymetop 1% of all pairsSmell alikestrongCooked together360 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
-
Celery + thymetop 3% of all pairsSmell alikestrongCooked together3,193 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Celery + leektop 4% of all pairsSmell alikestrongCooked together1,093 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + leektop 4% of all pairsSmell alikestrongCooked together1,326 recipes
Shared aroma: ethyl butyrate (apple, fruity).
-
Onion + thymetop 7% of all pairsSmell alikemoderateCooked together11,171 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fish trimmings
- Provide the main flavor and gelatin-rich body of the stock as they simmer.
- Onions
- Add sweetness and aromatic depth to the stock.
- Celery
- Adds subtle savory, aromatic flavor to the stock.
- Dry white wine
- Adds acidity and brightness that lift the flavor of the stock.
The step that matters
Skimming the scum and surface. Foam and impurities rise as the liquid heats; removing them keeps the stock clear and prevents off, bitter flavors from being reincorporated as it simmers.
Swap the celery
How well each one fits the dish's main ingredients (fish, onion, leek, thyme, white wine):
- Marjoramfits better
- Garlicfits better
- Parsleyfits better
- Celerythe original
Fit is the average pairing score against fish, onion, leek, thyme, white wine. 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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