Broccoli + Onion
A proven pairing. Cooks put them together in 3,294 recipes, and they share 231 flavor molecules: the top 6% of all ingredient pairs.
Do broccoli and onion go together?
Yes. 3,294 recipes in our collection combine them, and they share 231 flavor molecules. That places them in the top 6% of every ingredient pair we score.
Why they work
More than half of broccoli's flavor molecules (231 of 298) also occur in onion. Among the shared key aromas are coumarin (sweet, hay) and 2-methylbutyraldehyde (malty, chocolate).
What each one brings
broccoli
The floral side. Floral notes make up 13% of its labelled aroma molecules, against 8% for onion. It carries 67 molecules onion doesn't have.
onion
The savoury side. Savory notes make up 8% of its labelled aroma molecules, against 2% for broccoli. It carries 134 molecules broccoli doesn't have.
Add a third ingredient
- Garlic: the best fit for both, top 1% of pairs with broccoli, top 1% with onion.
- Mustard: top 1% of pairs with broccoli, top 6% with onion.
- Sesame: top 1% of pairs with broccoli, top 4% with onion.
- Chive: top 1% of pairs with broccoli, top 3% with onion.
Ranked by the average of its two pairing scores. Only foods used in at least 100 recipes are suggested.
Recipes with broccoli and onion
Mostly mains: 621 of the 819 recipes with a course label are mains (from a sample of 3,000 recipes that use both).
Can you swap one for the other?
Only partly. Most of broccoli's flavor molecules (231 of 298) are also found in onion, but onion has 134 that broccoli lacks. Broccoli gives you part of onion's character without most of its savoury side. This compares flavor only; texture, moisture and the job each does in a dish matter too.
All 231 shared molecules
See every shared molecule grouped by chemical class, with key aromas marked, plus the 67 only in broccoli and the 134 only in onion.
Broccoli and onion questions
Do broccoli and onion go together?
A proven pairing. Cooks put them together in 3,294 recipes, and they share 231 flavor molecules: the top 6% of all ingredient pairs.
Why do broccoli and onion taste good together?
More than half of broccoli's flavor molecules (231 of 298) also occur in onion. Among the shared key aromas are coumarin (sweet, hay) and 2-methylbutyraldehyde (malty, chocolate).
What goes with broccoli and onion?
Garlic is the best third ingredient: top 1% of pairs with broccoli and top 1% with onion. Mustard and sesame also fit both.
What can you make with broccoli and onion?
Mostly mains: 621 of the 819 recipes with a course label are mains (from a sample of 3,000 recipes that use both). Common dishes include Broccoli Salad, Broccoli Soup, 5‑Minute Broccoli Soup, All-weather Broccoli Soup.
Can I use onion instead of broccoli?
Only partly. Most of broccoli's flavor molecules (231 of 298) are also found in onion, but onion has 134 that broccoli lacks. Broccoli gives you part of onion's character without most of its savoury side. 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: Broccoli vs Onion. https://compkitchen.com/compare/broccoli-vs-onion. Accessed 2026-11-04.
@misc{compkitchen_compare_compound_similarity_analysis_broccoli_vs_onion_2026,
title = {Compound similarity analysis: Broccoli vs Onion},
author = {{Compound Kitchen}},
year = {2026},
url = {https://compkitchen.com/compare/broccoli-vs-onion},
note = {Accessed: 2026-11-04}
}
Methodology DOI: 10.5281/zenodo.19719459 · CC BY 4.0 · Citations are a request, not a requirement.