Why it works: Endive and lettuce match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 284 recipes. Both carry trans-2-hexenal, which smells green, leafy. The science ↓
White Soup Without Meat
Ingredients
Directions
Make the base
Put 2 quarts of water in a clean saucepan.
Add the bread crumb, sweet herbs, pepper, cloves, chopped onion, and salt.
Boil for 30 minutes.
Add vegetables and finish
Cut the white parts of celery, endive, and lettuce into pieces.
Boil them in the soup until smooth.
Strain the soup and return it to the fire.
When it begins to boil, add the butter rolled in flour.
Boil for a few more minutes and serve.
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.
Photo for illustrative purposes only · Contact us to use it
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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Endive + lettucetop 1% of all pairsSmell alikestrongCooked together284 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Celery + lettucetop 4% of all pairsSmell alikestrongCooked together2,033 recipes
Shared aroma: nonanal (fat, citrus).
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Pepper + clovetop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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Pepper + celerytop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Celery + endivetop 5% of all pairsSmell alikestrongCooked together160 recipes
Shared aroma: nonanal (fat, citrus).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Bread crumb
- Soaks up liquid and thickens the soup, giving it body.
- White parts of celery, endive, and lettuce
- Provide the bulk and mild flavour of the soup, and break down to add body.
- Butter
- Adds richness and a smooth mouthfeel to the finished soup.
- Flour
- Thickens the soup with the butter, giving a smoother, slightly fuller texture.
The step that matters
Adding the butter rolled in flour. Flour clumps if dropped straight into hot liquid. Rolling it in butter coats the particles so they disperse, and the soup must be at a boil for the flour to cook and thicken properly.
Swap the onion
How well each one fits the dish's main ingredients (pepper, clove, celery, endive, lettuce, butter, flour):
- Turnipfits better
- Leekfits better
- Beetrootfits better
- Onionthe original
Fit is the average pairing score against pepper, clove, celery, endive, lettuce, butter, flour. 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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