Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓
Eel Soup
Ingredients
Directions
Prepare the eels
Wash the eels and cut them into thin slices.
Melt the butter in a stewpan.
Add the eels and let them simmer for a few minutes.
Make the soup
Pour in the water.
Add the sliced onion, herbs, mace, and seasoning.
Simmer until the eels are tender, being careful not to break them.
Remove the eels carefully.
Finish and serve
Mix the flour with the cream to form a smooth batter.
Bring the batter to a boil.
Pour the cream mixture over the eels.
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.
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.
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Onion + macetop 17% of all pairsSmell alikelowCooked together7,078 recipes
Shared aroma: eugenol (clove, spicy).
-
Onion + flourtop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eels
- Provide the main body and flavour of the soup.
- Butter
- Fat that gently cooks the eels and carries flavour.
- Flour
- Thickens the cream mixture into a smooth batter.
- Cream
- Adds richness and body to the finished soup.
- Onion
- Adds savoury aromatic flavour to the broth.
The step that matters
Simmer until the eels are tender, being careful not to break them. Eels are delicate; a gentle simmer cooks the flesh through without boiling it hard, which would cause the slices to fall apart and cloud the broth.
Swap the mace
How well each one fits the dish's main ingredients (onion, butter, flour, cream):
- Garlicfits better
- Capersfits better
- Nutmegfits better
- Macethe original
Fit is the average pairing score against onion, butter, flour, 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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