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 Red Herrings
Ingredients
Directions
Prepare
Cut the herrings open and pour boiling small beer over them.
Let them soak for half an hour, then drain them dry.
Cook and serve
Heat them just through before the fire.
Rub cold butter over the herrings and serve.
Serve with egg sauce 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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Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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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).
Butter and sauce barely smell alike, yet cooks put them together in 15,338 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
- Large red herrings
- Form the main protein that is soaked, heated and eaten as the dish.
- Boiling small-beer
- Soaks the herrings, flavouring them and adding moisture before heating.
- Cold butter
- Rubbed over the hot herrings to add richness and fat to the finished dish.
- Egg-sauce
- Adds a creamy, rich accompaniment that balances the savoury fish.
- Mashed potatoes
- Provides a soft, starchy side that complements the herrings.
The step that matters
Heat them just through before the fire. Herrings are delicate and dry out or toughen when overheated, so gentle heating only until warmed through keeps them moist and tender.
Swap the potato
How well each one fits the dish's main ingredients (beer, butter, egg, sauce):
- Capsicumfits better
- Mustardfits about as well
- Shallotfits about as well
- Potatothe original
Fit is the average pairing score against beer, butter, egg, sauce. 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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