Why it works: Fish and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 4,488 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Buttee Sauce
Ingredients
Directions
Prepare
Boil the eggs until the yolks are hard, then mash them smooth.
Make the sauce
In a saucepan, combine the fish water and a little flour mixed with cold water to thicken.
Stir in the butter and the mashed eggs, then bring to a boil.
Serve in a sauce 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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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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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Egg + fishtop 22% of all pairsSmell alikemoderateCooked together2,782 recipes
Shared aroma: 2-nonenal (fatty, 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
- Hard-boiled eggs
- Mashed yolks and whites give the sauce body and a rich, creamy texture.
- Butter
- Adds fat for richness and a smooth, glossy mouthfeel.
- Flour
- Thickens the fish water into a sauce that holds together.
- Fish water
- Forms the liquid base that carries the flavor of the sauce.
The step that matters
Mixing the flour slurry into the fish water. Flour must be mixed smoothly with cold water before it goes into hot liquid. Added dry or lumpy, starch clumps and the sauce turns grainy. Starch thickens properly only once the liquid is heated and stirred, so the slurry should be fully blended first.
“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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