Why it works: Lettuce and chervil match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 396 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Stock Without Meat
Ingredients
Directions
Prepare
Combine the carrots, turnips, onions, lettuces, celery, chervil, cabbage, and parsnip in a stew pan.
Add the butter and 4 cups of water.
Stew until the liquid is nearly evaporated.
Make the stock
Fill the stew pan with more water.
Add the peas, chives, pepper, and salt.
Stew slowly for 3 to 4 hours.
Strain through a colander.
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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Lettuce + cherviltop 1% of all pairsSmell alikestrongCooked together396 recipes
Shared aroma: coumarin (sweet, hay).
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Turnip + cherviltop 1% of all pairsSmell alikestrongCooked together184 recipes
Shared aroma: coumarin (sweet, hay).
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Turnip + parsniptop 1% of all pairsSmell alikestrongCooked together590 recipes
Shared aroma: coumarin (sweet, hay).
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Carrot + parsniptop 1% of all pairsSmell alikestrongCooked together1,097 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Carrot + celerytop 1% of all pairsSmell alikestrongCooked together10,173 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
- Butter
- Adds fat and richness, carrying flavour into the stock.
- Peas
- Contribute body and a mild sweetness to the stock.
- Onions
- Release sugars and aromatic compounds that deepen the stock's flavour as they stew.
The step that matters
Stew until the liquid is nearly evaporated. Reducing the liquid concentrates the flavours of the vegetables. Stopping too early leaves the stock weak, while reducing too far can scorch the vegetables on the base of the pan.
Swap the onion
How well each one fits the dish's main ingredients (carrot, turnip, lettuce, celery, chervil, cabbage, parsnip):
- Beetrootfits better
- Leekfits better
- Endivefits better
- Onionthe original
Fit is the average pairing score against carrot, turnip, lettuce, celery, chervil, cabbage, parsnip. 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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