Onion + Soybean
A proven pairing. Cooks put them together in 93 recipes, and they share 254 flavor molecules: the top 9% of all ingredient pairs.
Do onion and soybean go together?
Yes. 93 recipes in our collection combine them, and they share 254 flavor molecules. That places them in the top 9% of every ingredient pair we score.
Why they work
More than half of onion's flavor molecules (254 of 365) also occur in soybean. Among the shared key aromas are 2,4-decadienal (seaweed) and furaneol (caramel, strawberry).
What each one brings
onion
The sulfurous side. Sulfurous notes make up 13% of its labelled aroma molecules, against 4% for soybean. It carries 111 molecules soybean doesn't have.
soybean
The fruit. Fruity notes make up 18% of its labelled aroma molecules, against 9% for onion. It carries 251 molecules onion doesn't have.
Add a third ingredient
- Sesame: the best fit for both, top 4% of pairs with onion, top 1% with soybean.
- Garlic: top 1% of pairs with onion, top 9% with soybean.
- Capsicum: top 9% of pairs with onion, top 5% with soybean.
- Potato: top 3% of pairs with onion, top 12% with soybean.
Ranked by the average of its two pairing scores. Only foods used in at least 100 recipes are suggested.
Recipes with onion and soybean
Mostly mains: 13 of the 20 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 111 molecules soybean doesn't, and soybean has 251 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 254 shared molecules
See every shared molecule grouped by chemical class, with key aromas marked, plus the 111 only in onion and the 251 only in soybean.
Onion and soybean questions
Do onion and soybean go together?
A proven pairing. Cooks put them together in 93 recipes, and they share 254 flavor molecules: the top 9% of all ingredient pairs.
Why do onion and soybean taste good together?
More than half of onion's flavor molecules (254 of 365) also occur in soybean. Among the shared key aromas are 2,4-decadienal (seaweed) and furaneol (caramel, strawberry).
What goes with onion and soybean?
Sesame is the best third ingredient: top 4% of pairs with onion and top 1% with soybean. Garlic and capsicum also fit both.
What can you make with onion and soybean?
Mostly mains: 13 of the 20 recipes with a course label are mains. Common dishes include Marinated Black Soybean Salad, Soybean-Lentil-Rice Loaf, Soybeans over Mixed Grains, Baked Vegetarian Chimichangas.
Can I use soybean instead of onion?
Not really. Each has a lot the other lacks: onion has 111 molecules soybean doesn't, and soybean has 251 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 Soybean. https://compkitchen.com/compare/onion-vs-soybean. Accessed 2026-11-04.
@misc{compkitchen_compare_compound_similarity_analysis_onion_vs_soybean_2026,
title = {Compound similarity analysis: Onion vs Soybean},
author = {{Compound Kitchen}},
year = {2026},
url = {https://compkitchen.com/compare/onion-vs-soybean},
note = {Accessed: 2026-11-04}
}
Methodology DOI: 10.5281/zenodo.19719459 · CC BY 4.0 · Citations are a request, not a requirement.