Why it works: Celery and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 6,810 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Mode of Making Sarah Davis' White Dahl Soup
Ingredients
Directions
Prepare the soup base
Wash the dahl and place it in a saucepan with cold water, celery, parsley, mace, peppercorns, and sliced onion.
Boil for one hour or until the dahl is soft.
Rub the mixture through a sieve with a wooden spoon to extract as much pulp and liquid as possible.
Make the roux and finish
In a separate saucepan, combine flour and butter, rubbing them together until smooth over low heat.
Add the milk, stirring well until the mixture thickens.
Incorporate the soup from the sieve, season with salt and pepper, and bring to a boil.
Add the cream just before serving, ensuring it does not boil afterwards.
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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Celery + parsleytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Celery + oniontop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Parsley + oniontop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Dahl
- Breaks down during boiling to give the soup its body and thickness.
- Flour
- Thickens the soup with butter to form a smooth roux.
- Butter
- Combines with flour to form a roux that helps thicken the soup smoothly.
- Milk
- Thickens with the roux and adds a creamy, soft body to the soup.
- Cream
- Adds richness and a smooth, velvety texture to the finished soup.
The step that matters
Adding the cream. Cream can curdle or separate if it boils, so it is stirred in just before serving and the soup kept below boiling afterwards.
Swap the mace
How well each one fits the dish's main ingredients (celery, parsley, onion, flour, butter, milk, cream):
- Nutmegfits better
- Thymefits better
- Tarragonfits better
- Macethe original
Fit is the average pairing score against celery, parsley, onion, flour, butter, milk, cream. 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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