Why it works: Thyme and marjoram match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 2,225 recipes. Both carry terpineol, which smells pine, woody. The science ↓
Eel Soup
Ingredients
Directions
Cook the eels
Cook the eels in boiling water with vinegar, carrot, onion, parsley, pepper, and salt for 20 minutes.
Remove the eels.
Make the soup
Mix half of the broth with white stock.
Add sliced boiled carrot, cooked peas, thyme, and marjoram to the mixture and mix thoroughly.
Add hot milk and egg yolk.
Pour the soup over the eels in a soup tureen.
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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Thyme + marjoramtop 1% of all pairsSmell alikestrongCooked together2,225 recipes
Shared aroma: terpineol (pine, woody).
-
Parsley + thymetop 1% of all pairsSmell alikestrongCooked together9,057 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
-
Parsley + marjoramtop 1% of all pairsSmell alikestrongCooked together1,979 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
-
Carrot + parsleytop 1% of all pairsSmell alikestrongCooked together8,053 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Carrot + marjoramtop 1% of all pairsSmell alikestrongCooked together687 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eels
- Provide the main protein and rich flavor of the soup.
- Egg yolk
- Thickens and enriches the soup as it gently heats.
- Milk
- Adds creaminess and softens the broth's flavor.
The step that matters
Adding the hot milk and egg yolk. Egg yolk thickens when heated gently but can curdle or scramble if the soup boils. Keep the soup below a simmer once the yolk goes in so it stays smooth and silky.
Swap the peas
How well each one fits the dish's main ingredients (vinegar, carrot, onion, parsley, pepper, thyme, marjoram):
- Lentilsfits better
- Black-eyed peafits better
- Chickpeafits better
- Peasthe original
Fit is the average pairing score against vinegar, carrot, onion, parsley, pepper, thyme, marjoram. 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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