Why it works: Butter and potato are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 6,456 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
To Dress Fish
Ingredients
Directions
Prepare
Cut the herrings open and soak them in boiling small beer for 30 minutes.
Drain them completely and heat them just until warm over a fire.
Finish and serve
Rub cold butter over the herrings and serve.
Serve with egg sauce or buttered eggs and mashed potatoes.
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 + potatotop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Beer + potatotop 14% of all pairsSmell alikemoderateCooked together145 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Beer + buttertop 15% of all pairsSmell alikemoderateCooked together680 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Egg + potatotop 29% of all pairsSmell alikemoderateCooked together4,978 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Herrings
- Provide the main fish, which the beer soak seasons and keeps moist while cooking.
- Small beer
- Soaks into the fish, adding a mild malty flavor.
- Cold butter
- Adds richness and a glossy finish when rubbed over the warm fish.
- Egg sauce or buttered eggs
- Adds a creamy, rich accompaniment that complements the fish.
- Mashed potatoes
- Provides a soft, starchy side that balances the rich fish.
The step that matters
Drain them completely and heat them just until warm over a fire.. Excess surface liquid makes gentle heating uneven and dilutes flavor, while overheating toughens fish protein and dries it out. Heating only until warm keeps the flesh moist and tender.
Swap the potato
How well each one fits the dish's main ingredients (beer, butter, egg):
- Potatothe original
- Chivefits about as well
- Capsicumfits about as well
- Mustardfits about as well
Fit is the average pairing score against beer, butter, egg. 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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