Why it works: Vinegar and onion 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 ↓
Curried Sole
Ingredients
Directions
Prepare
Cut the filleted sole into pieces, not too small.
Soak the pieces in vinegar for 1 hour.
Make the curry
Prepare gravy with fried onions and curry powder.
Add the sole pieces and butter to the gravy.
Simmer gently for 30 minutes or longer if the sole is thick.
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.
-
Vinegar + oniontop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Vinegar + buttertop 23% of all pairsSmell alikemoderateCooked together13,513 recipes
Shared aroma: isoamyl acetate (banana, pear).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Sole
- Firm white fish that flakes into tender pieces when gently simmered in the sauce.
- Vinegar
- Acidity that softens the fish pieces and gives a sharper, brighter flavour to the dish.
- Curry powder
- Provides the spiced aroma and flavour that defines the gravy.
- Butter
- Adds richness and a smooth, rounded mouthfeel to the gravy.
- Onion
- Fried onions form the sweet, savoury base of the gravy.
The step that matters
Simmer gently for 30 minutes or longer if the sole is thick. Fish proteins toughen and dry out when boiled hard, so a gentle simmer keeps the pieces tender while they cook through. Thick pieces need extra time to heat to the centre.
Swap the onion
How well each one fits the dish's main ingredients (vinegar, butter):
- Mustardfits about as well
- Shallotfits about as well
- Onionthe original
- Cucumberfits about as well
Fit is the average pairing score against vinegar, butter. 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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