Why it works: Mustard and vinegar are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 14,067 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Fresh Herrings
Ingredients
Directions
Prepare the fish
Scale and clean the fish thoroughly.
Split the fish open and wash the insides carefully.
Dry the fish with a cloth, then remove the heads, tails, and backbones.
Rub the insides with pepper, salt, and a little pounded mace.
Place small bits of butter inside and skewer two fish together with the skin facing out.
Cook and serve
Flour the fish and broil or fry until golden brown.
Broil for 20 to 25 minutes or fry for about 10 minutes.
Serve with melted butter mixed with mustard, salt, and a little vinegar or lemon juice.
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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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + mustardtop 13% of all pairsSmell alikemoderateCooked together5,066 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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
- Fresh herrings
- The main fish, whose flesh cooks through and becomes flaky over the heat.
- Butter
- Adds richness and moisture inside the fish and forms the base of the serving sauce.
- Flour
- Coats the outside so it browns golden during broiling or frying.
- Mustard
- Adds sharp, pungent flavour to the melted butter sauce that accompanies the fish.
- Vinegar or lemon juice
- Adds acidity that brightens the rich butter and balances the fish.
The step that matters
Flour the fish and broil or fry until golden brown. Flour browns and crisps the surface as the fish cooks. Too little heat or too long a cook can dry the flesh, while too short a cook leaves the fish underdone.
Swap the mace
How well each one fits the dish's main ingredients (pepper, butter, flour, mustard, vinegar):
- Tarragonfits better
- Capersfits better
- Turmericfits better
- Macethe original
Fit is the average pairing score against pepper, butter, flour, mustard, vinegar. 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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