Onion + Salmon
A good pairing. Cooks put them together in 3,529 recipes, and they share 23 flavor molecules: the top 19% of all ingredient pairs.
Do onion and salmon go together?
Yes. 3,529 recipes in our collection combine them, and they share 23 flavor molecules. That places them in the top 19% of every ingredient pair we score.
Why they work
They overlap on 23 flavor molecules: 49% of salmon's 47. Among the shared key aromas are decanal (soap, orange peel) and guaiacol (smoky, sweet). Most of what they share is background chemistry many foods carry, so the overlap does little for the smell.
What each one brings
onion
The tartness. Sour notes make up 15% of its labelled aroma molecules, against 2% for salmon. It carries 342 molecules salmon doesn't have.
salmon
The fresh, green side. Green notes make up 34% of its labelled aroma molecules, against 8% for onion. It carries 24 molecules onion doesn't have.
Add a third ingredient
- Sesame: the best fit for both, top 4% of pairs with onion, top 11% with salmon.
- Chive: top 3% of pairs with onion, top 13% with salmon.
- Garlic: top 1% of pairs with onion, top 21% with salmon.
- Avocado: top 5% of pairs with onion, top 13% with salmon.
Ranked by the average of its two pairing scores. Only foods used in at least 100 recipes are suggested.
Recipes with onion and salmon
Almost always mains: 526 of the 609 recipes with a course label are mains.
Can you swap one for the other?
Not really. Each has a lot the other lacks: onion has 342 molecules salmon doesn't, and salmon has 24 that onion doesn't. Treat them as partners, not stand-ins. This compares flavor only; texture, moisture and the job each does in a dish matter too.
All 23 shared molecules
See every shared molecule grouped by chemical class, with key aromas marked, plus the 342 only in onion and the 24 only in salmon.
Onion and salmon questions
Do onion and salmon go together?
A good pairing. Cooks put them together in 3,529 recipes, and they share 23 flavor molecules: the top 19% of all ingredient pairs.
Why do onion and salmon taste good together?
They overlap on 23 flavor molecules: 49% of salmon's 47. Among the shared key aromas are decanal (soap, orange peel) and guaiacol (smoky, sweet). Most of what they share is background chemistry many foods carry, so the overlap does little for the smell.
What goes with onion and salmon?
Sesame is the best third ingredient: top 4% of pairs with onion and top 11% with salmon. Chive and garlic also fit both.
What can you make with onion and salmon?
Almost always mains: 526 of the 609 recipes with a course label are mains. Common dishes include Salmon with Spring Onion Mash, Salmon Salad, Alaska Salmon Stir-Fry, Apricot Lime-Glazed Salmon.
Can I use salmon instead of onion?
Not really. Each has a lot the other lacks: onion has 342 molecules salmon doesn't, and salmon has 24 that onion doesn't. Treat them as partners, not stand-ins. This compares flavor only; texture, moisture and the job each does in a dish matter too.
Compare other ingredients
Ranks compare this pair with 20,000 random ingredient pairs on CompKitchen. Molecule counts are what the studies and databases we aggregate have reported for each ingredient: a measure of coverage, not a full census. How we score pairs
Cite this analysis
Compound Kitchen (2026). Compound similarity analysis: Onion vs Salmon. https://compkitchen.com/compare/onion-vs-salmon. Accessed 2026-11-04.
@misc{compkitchen_compare_compound_similarity_analysis_onion_vs_salmon_2026,
title = {Compound similarity analysis: Onion vs Salmon},
author = {{Compound Kitchen}},
year = {2026},
url = {https://compkitchen.com/compare/onion-vs-salmon},
note = {Accessed: 2026-11-04}
}
Methodology DOI: 10.5281/zenodo.19719459 · CC BY 4.0 · Citations are a request, not a requirement.