Why it works: Onion and potato are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Stewed Fish
Ingredients
Directions
Prepare the stock
Remove the heads and bones from the fish.
Boil the heads and bones in 3 pints of water for 30 minutes.
Make the sauce
Slice the pork.
Fry the pork until browned.
Slice the onions.
Fry the onions in the pork fat.
Stir in the flour.
Cook for 3 minutes, stirring constantly.
Pour the boiling water from the bones over the onion mixture.
Simmer for 10 minutes.
Stew and serve
Cut the fish into 3-inch pieces.
Season the fish with salt and pepper.
Place the fish in the stewpan.
Strain the sauce over the fish.
Cover tightly.
Simmer for 20 minutes.
Taste the sauce.
Adjust seasoning if necessary.
Garnish with potato balls.
Garnish with parsley.
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 + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pork + potatotop 5% of all pairsSmell alikemoderateCooked together2,668 recipes
Shared aroma: sotolon (curry, maple).
-
Pepper + potatotop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pork + oniontop 10% of all pairsSmell alikemoderateCooked together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Thickens the sauce as it cooks with the onions and fat.
- Pork
- Its rendered fat browns and flavours the onions and sauce.
- Onions
- Soften and sweeten as they cook, adding body and flavour to the sauce.
- Fish
- Provides the main protein, which becomes tender as it simmers in the sauce.
The step that matters
Simmer the fish gently. Fish protein breaks down and toughens or falls apart when boiled hard, so a gentle simmer keeps the pieces intact and tender.
Swap the onion
How well each one fits the dish's main ingredients (fish, pork, flour, pepper, potato):
- Capsicumfits better
- Asparagusfits about as well
- Chivefits about as well
- Onionthe original
Fit is the average pairing score against fish, pork, flour, pepper, potato. 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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