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 ↓
Salmon Loaf with Tomato Sauce
Ingredients
Directions
Make the loaf
Remove bones and skin from the salmon.
Mix the salmon smoothly.
Add melted butter, rolled crackers, pepper, salt, and grated onion.
Beat the eggs thoroughly and add them to the mixture.
Steam in a round can for 1 hour and 15 minutes, tying a cloth under the cover to absorb water.
Make the tomato sauce
Boil canned tomatoes with water and onion slices for 10-15 minutes.
Rub the mixture through a sieve.
Blend butter with flour in a frying pan.
Add the tomato juice.
Cook until creamy.
Serve
Place the loaf on a platter.
Garnish with parsley.
Serve in slices with tomato sauce.
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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Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Bind the salmon mixture and help it set firm when steamed.
- Salmon
- Provides the main body and flavour of the loaf.
- Rolled crackers
- Absorb moisture and give the loaf a light, crumbly structure.
- Butter
- Adds richness and moisture to the loaf and a smooth base for the sauce.
- Flour
- Thickens the butter and tomato sauce to a creamy consistency.
- Canned tomatoes
- Supply acidity and body to the sauce once sieved.
The step that matters
Steaming with a cloth under the cover. Eggs set into a firm loaf only when heated gently and evenly. Tying a cloth under the lid absorbs condensation that would otherwise drip onto the loaf and make it watery and soggy.
Swap the tomato
How well each one fits the dish's main ingredients (salmon, butter, pepper, onion, egg, flour):
- Chivefits better
- Leekfits better
- Asparagusfits better
- Tomatothe original
Fit is the average pairing score against salmon, butter, pepper, onion, egg, flour. 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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