Why it works: Pepper and tomato are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Broiled Whitefish
Ingredients
Directions
Prepare the fish
Wipe the fish dry with a cloth, ensuring no water touches it after being caught.
Broil and serve
Broil the fish over a hot fire of live coals until it is light brown.
Bathe the fish with melted butter.
Serve the fish hot.
Make the sauce
Combine butter, red pepper, black pepper, tomato catsup, walnut catsup, mustard, and salt in a saucepan.
Melt the sauce ingredients quickly over low heat.
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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Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Walnut + mustardtop 9% of all pairsSmell alikestrongCooked together849 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + mustardtop 11% of all pairsSmell alikemoderateCooked together2,482 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pepper + walnuttop 13% of all pairsSmell alikemoderateCooked together3,039 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Whitefish
- Forms the main body of the dish, cooked by broiling until light brown.
- Butter
- Adds richness and moisture, and carries flavour when melted over the fish and into the sauce.
- Tomato catsup
- Adds sweetness and acidity to the sauce, giving it its main tangy flavour.
- Walnut catsup
- Contributes deep, savoury flavour to the sauce alongside the tomato catsup.
- Mustard
- Adds sharpness and a pungent bite that balances the richness of the butter.
The step that matters
Melt the sauce ingredients quickly over low heat. Butter can separate or scorch if overheated, and gentle, brief heat keeps the emulsified sauce smooth. Rushing with high heat risks burning the milk solids and catsups.
Swap the walnut
How well each one fits the dish's main ingredients (whitefish, butter, pepper, tomato, mustard):
- Beansfits better
- Black-eyed peafits better
- Lentilsfits better
- Walnutthe original
Fit is the average pairing score against whitefish, butter, pepper, tomato, mustard. 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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