Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Puree of Fish, or Cream Soup of Fish
Ingredients
Directions
Prepare
Rub the cold boiled fish through a fine sieve.
Make the soup
In a saucepan, mix the butter and flour until smooth over medium heat.
Gradually add the milk (or milk and water) to the mixture, stirring constantly.
Add the sifted fish to the saucepan and mix well.
Season with salt and pepper to taste.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Fish + buttertop 12% of all pairsSmell alikemoderateCooked together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Fish + milktop 13% of all pairsSmell alikemoderateCooked together1,432 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 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
- Butter
- Fat that forms the base of the roux with flour and adds richness to the soup.
- Flour
- Thickens the milk into a smooth cream when cooked with butter.
- Milk
- Forms the liquid base of the cream soup and gives it body.
- Cold boiled fish
- Provides the main flavor and, once sieved, a smooth texture to the soup.
The step that matters
Gradually add the milk while stirring constantly. Adding liquid slowly while stirring keeps the flour and butter mixture smooth. Dumping in milk at once can trap lumps of starch that do not dissolve, leaving a grainy soup.
“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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