Onion + Chervil
A good pairing. Cooks put them together in 668 recipes, and they share 205 flavor molecules: the top 11% of all ingredient pairs.
Do onion and chervil go together?
Yes. 668 recipes in our collection combine them, and they share 205 flavor molecules. That places them in the top 11% of every ingredient pair we score.
Why they work
Almost everything chervil carries, onion has too: 205 of chervil's 223 flavor molecules also occur in onion. Among the shared key aromas are coumarin (sweet, hay) and 2-methylbutyraldehyde (malty, chocolate).
What each one brings
onion
The sulfurous side. Sulfurous notes make up 13% of its labelled aroma molecules, against 3% for chervil. It carries 160 molecules chervil doesn't have.
chervil
The floral side. Floral notes make up 12% of its labelled aroma molecules, against 8% for onion. It carries 18 molecules onion doesn't have.
Add a third ingredient
- Chive: the best fit for both, top 3% of pairs with onion, top 1% with chervil.
- Capers: top 7% of pairs with onion, top 1% with chervil.
- Shallot: top 8% of pairs with onion, top 1% with chervil.
- Leek: top 4% of pairs with onion, top 1% with chervil.
Ranked by the average of its two pairing scores. Only foods used in at least 100 recipes are suggested.
Recipes with onion and chervil
Mostly mains: 16 of the 22 recipes with a course label are mains.
Can you swap one for the other?
Only partly. Almost all of chervil's flavor molecules (205 of 223) are also found in onion, but onion has 160 that chervil lacks. Chervil gives you part of onion's character without most of its sulfurous side. This compares flavor only; texture, moisture and the job each does in a dish matter too.
All 205 shared molecules
See every shared molecule grouped by chemical class, with key aromas marked, plus the 160 only in onion and the 18 only in chervil.
Onion and chervil questions
Do onion and chervil go together?
A good pairing. Cooks put them together in 668 recipes, and they share 205 flavor molecules: the top 11% of all ingredient pairs.
Why do onion and chervil taste good together?
Almost everything chervil carries, onion has too: 205 of chervil's 223 flavor molecules also occur in onion. Among the shared key aromas are coumarin (sweet, hay) and 2-methylbutyraldehyde (malty, chocolate).
What goes with onion and chervil?
Chive is the best third ingredient: top 3% of pairs with onion and top 1% with chervil. Capers and shallot also fit both.
What can you make with onion and chervil?
Mostly mains: 16 of the 22 recipes with a course label are mains. Common dishes include Catfish Smothered with Spring Onions and Morels, Avocado Dressing for Vegetable Salads, Beef in Madeira Sauce, Cream of Sun-Dried Tomato Soup.
Can I use chervil instead of onion?
Only partly. Almost all of chervil's flavor molecules (205 of 223) are also found in onion, but onion has 160 that chervil lacks. Chervil gives you part of onion's character without most of its sulfurous 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: Onion vs Chervil. https://compkitchen.com/compare/onion-vs-chervil. Accessed 2026-11-04.
@misc{compkitchen_compare_compound_similarity_analysis_onion_vs_chervil_2026,
title = {Compound similarity analysis: Onion vs Chervil},
author = {{Compound Kitchen}},
year = {2026},
url = {https://compkitchen.com/compare/onion-vs-chervil},
note = {Accessed: 2026-11-04}
}
Methodology DOI: 10.5281/zenodo.19719459 · CC BY 4.0 · Citations are a request, not a requirement.