Why it works: Onion and vinegar are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 18,226 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓
Brown Stewed Fish
Ingredients
Directions
Prepare the onions
Peel and slice the onions, then cook them with the cold water in a stewpan until fully cooked.
Cook the fish
Add the fish and seasoning, allowing the fish to partly cook.
Melt the gingerbread with the brown vinegar in a bowl and mix in the treacle.
Pour this mixture over the fish and let everything cook thoroughly.
Serve cold, shaking the saucepan after adding the sauce to prevent the treacle from burning.
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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Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Fish + oniontop 19% of all pairsSmell alikelowCooked together1,924 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Fish + vinegartop 26% of all pairsSmell alikelowCooked together1,036 recipes
Shared aroma: acetoin (butter, cream).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fish
- Forms the main body of the dish, becoming tender as it cooks in the sauce.
- Treacle
- Adds sweetness and a dark colour, and can scorch if left still.
- Gingerbread
- Melts into the sauce, adding spice and body to the dish.
- Brown vinegar
- Adds acidity that balances the sweetness of the treacle and gingerbread.
- Onions
- Soften into the cooking liquid, adding sweetness and savoury depth to the sauce.
The step that matters
Shaking the saucepan after adding the sauce. Treacle is high in sugar and can scorch on the base of the pan as it heats. Shaking the pan keeps the sauce moving and spreads it evenly, reducing the risk of burnt sugar flavour and sticking.
Swap the onion
How well each one fits the dish's main ingredients (fish, vinegar):
- Cucumberfits better
- Mustardfits better
- Horseradishfits better
- Onionthe original
Fit is the average pairing score against fish, 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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