Why it works: Milk and butter 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 ↓
Fish Souffle
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Make the base
Melt the butter, then whisk in the flour and milk until smooth.
Add the egg yolks and seasonings to the sauce, then fold in the fish.
Fold and cook
Beat the egg whites until stiff, then gently fold them into the fish mixture.
Pour the mixture into a buttered baking dish and steam for 30 minutes.
Alternatively, bake for 30 minutes at 400°F (200°C) after adding an extra egg white.
Serve
Top with a little whipped cream before serving.
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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Milk + buttertop 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).
-
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).
-
Milk + flourtop 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
- Fish
- Forms the main body and flavour of the soufflé.
- Milk
- Provides the liquid that becomes the smooth sauce base.
- Butter
- Adds fat for richness and helps form the initial roux.
- Flour
- Thickens the milk into a sauce that holds the fish and air.
- Eggs
- Yolks enrich the base, while whipped whites trap air and lift the soufflé.
The step that matters
Fold the beaten egg whites gently into the fish mixture. Whites whipped to stiff peaks hold tiny air bubbles that expand in the heat and make the soufflé rise. Vigorous stirring deflates these bubbles, so the soufflé falls and turns dense.
“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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