Why it works: Olive and tomato are a kitchen classic. They rank in the top 1% of all ingredient pairs, and cooks put them together in 15,539 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Curry of Salmon
Ingredients
Directions
Make the sauce
Fry the minced onion in olive oil until brown.
Add curry powder and cook for a moment.
Stir in hot water, flour dissolved in cold water, tomato ketchup or chutney, and salt.
Simmer until the sauce thickens.
Finish and serve
Add the canned salmon and warm through before serving.
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.
-
Olive + tomatotop 1% of all pairsSmell alikemoderateCooked together15,539 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + olivetop 8% of all pairsSmell alikemoderateCooked together29,779 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Olive + salmontop 15% of all pairsSmell alikelowCooked together2,942 recipes
Shared aroma: trans,trans-2,4-nonadienal (fatty, green).
-
Onion + flourtop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Onion
- Softens and browns in the oil, building a sweet, savory base for the sauce.
- Curry powder
- Provides the main spice aroma, which blooms when briefly cooked in hot fat.
- Flour
- Thickens the sauce as it simmers, giving it body.
- Tomato ketchup or chutney
- Adds sweetness and acidity that balance the spices.
- Canned salmon
- Supplies the main protein and flakes into the sauce as it warms.
The step that matters
Simmer until the sauce thickens. Flour thickens only when it is heated long enough for its starch to swell in the liquid. Stopping early leaves the sauce thin, while overcooking can make it pasty. Cooking the spices briefly before adding liquid helps them bloom.
Swap the onion
How well each one fits the dish's main ingredients (olive, flour, tomato, salmon):
- Cucumberfits better
- Eggplantfits better
- Chivefits better
- Onionthe original
Fit is the average pairing score against olive, flour, tomato, salmon. 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Tomato Soup526 recipes
Salmon Salad155 recipes
Salmon Croquettes129 recipes
Cream of Tomato Soup107 recipes