Why it works: Butter and fish match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and 4,432 recipes mention both. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
The recipe
Ingredients
Contains: egg, milk, wheat, fish (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Prepare
Boil 2 eggs for 10 minutes, then separate the yolk from the white of a raw egg.
Add a pinch of salt to the egg white and beat it until light.
Make the dough
In a bowl, combine flour, yeast powder, salt, egg white, and 1½ cups of water.
Knead the mixture, then roll it out as thin as possible.
Divide the butter into 3 pieces.
Spread one piece over the dough, fold it in thirds, and repeat until all butter is used.
Roll the dough into a square shape.
Beat the yolks of the eggs and brush them around the edges of the dough.
Fill and bake
Place the boiled rice in the center of the dough, followed by the boiled eggs, salt, pepper, and fish (bones removed).
Fold the dough over the filling, brush the crust with egg yolk, and place it in a floured pan.
Bake for 30 minutes.
Garnish with parsley 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 aroma chemistry they share, and how many recipes mention both.
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Butter + fishtop 5% of all pairsAroma overlapstrongMentioned together4,432 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Rice + fishtop 5% of all pairsAroma overlapstrongMentioned together269 recipes
Shared aroma: 2-nonenal (fatty, green).
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Flour + buttertop 6% of all pairsAroma overlaplowMentioned together122,858 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Rice + peppertop 6% of all pairsAroma overlapstrongMentioned together8,100 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + ricetop 7% of all pairsAroma overlapstrongMentioned together9,587 recipes
Shared aroma: gamma-undecalactone (peach, sweet).
Flour and butter share little aroma chemistry, yet 122,858 recipes mention both: they likely 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
- Flour
- Forms the dough's structure once kneaded and rolled thin.
- Butter
- Creates separate fat layers that help the crust bake flaky.
- Yeast powder
- Releases gas that helps the dough rise and lighten.
- Eggs
- Egg white lightens the dough; yolk glaze promotes browning on the crust.
- Boiled rice
- Adds bulk and soft body to the filling.
- Fish
- Provides the main substance and flavor of the filling.
The step that matters
Folding the butter into the dough. The butter must stay in distinct cold layers so steam from it separates the dough into flaky sheets. If the butter softens and melts in, the layers blur and the crust bakes dense instead of flaky.
“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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