Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Canned Salmon
Ingredients
Directions
Heat the salmon
Place the can of salmon in boiling water for 30 minutes, ensuring the water remains at boiling heat.
Remove the can.
Wipe the can dry.
Make a small hole in the top with scissors to pour the juice into a tin cup.
Keep the juice warm on the stove without boiling.
Make the gravy
If there's not enough juice, add 1 tablespoon of boiling water.
Mix 1 teaspoon of butter with ½ teaspoon of flour.
Stir the butter‑flour mixture into the juice.
Let the mixture boil for 2 minutes.
Add a pinch of salt and 1 tablespoon of tomato ketchup to the mixture.
Serve
Cut the entire top off the can.
Transfer the salmon to a warm chafing dish.
Serve the gravy in a separate dish, hot.
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.
Photo for illustrative purposes only · Contact us to use it
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.
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + ketchuptop 13% of all pairsSmell alikemoderateCooked together2,435 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Salmon + buttertop 16% of all pairsSmell alikemoderateCooked together4,481 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
-
Salmon + tomatotop 19% of all pairsSmell alikelowCooked together1,439 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
-
Butter + tomatotop 22% of all pairsSmell alikemoderateCooked together6,918 recipes
Shared aroma: 3-hexenal (apple, fruity).
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
- Salmon
- Provides the main protein and flesh that the dish is built around.
- Butter
- Adds richness and fat, carrying flavour into the gravy.
- Flour
- Thickens the juice into a smooth gravy as it cooks.
- Tomato ketchup
- Adds sweetness and acidity to season the gravy.
The step that matters
Keep the juice warm without boiling. Holding the juice just below a boil keeps it hot and smooth. Once the flour is stirred in, the gravy must boil briefly so the starch fully thickens and loses its raw taste.
Swap the tomato
How well each one fits the dish's main ingredients (salmon, butter, flour, ketchup):
- Chivefits better
- Shallotfits better
- Horseradishfits better
- Tomatothe original
Fit is the average pairing score against salmon, butter, flour, ketchup. 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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