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Pairing

Ketchup + Parsley

A good pairing. Cooks put them together in 990 recipes, and they share 45 flavor molecules: the top 22% of all ingredient pairs. We hold little distinguishing chemistry for one of them, so the recipe count carries this verdict.

Smell alikelow
Cooked together990 recipes
Ranktop 22% of pairs
45shared 273parsley only Ketchup · 45 Parsley · 318
Circle size = number of flavor molecules on record. Overlap = molecules they share.
Thin evidence for this pair. We hold no distinguishing chemistry for ketchup: every compound on it appears in more than 10% of ingredients, so this score is computed over the background every food shares. Distinguishing molecules on record: Ketchup 0, Parsley 77 (the typical ingredient has 12).

Do ketchup and parsley go together?

Yes. 990 recipes in our collection combine them, and they share 45 flavor molecules. That places them in the top 22% of every ingredient pair we score.

Read this with the evidence note above in mind.

Why they work

Almost everything ketchup carries, parsley has too: 45 of ketchup's 45 flavor molecules also occur in parsley. Among the shared key aromas are ethanol (alcoholic, ethereal) and decanoic acid (soapy, waxy). Most of what they share is background chemistry many foods carry, so the overlap does little for the smell.

What each one brings

ketchup

The tartness. Sour notes make up 35% of its labelled aroma molecules, against 18% for parsley. Every molecule it carries is also in parsley.

parsley

The herbal side. Herbal notes make up 14% of its labelled aroma molecules, against 5% for ketchup. It carries 273 molecules ketchup doesn't have.

Add a third ingredient

  • Whiting: the best fit for both, top 1% of pairs with ketchup, top 16% with parsley.
  • Sauce: top 1% of pairs with ketchup, top 23% with parsley.
  • Haddock: top 1% of pairs with ketchup, top 23% with parsley.
  • Atlantic halibut: top 1% of pairs with ketchup, top 24% with parsley.

Ranked by the average of its two pairing scores. Only foods used in at least 100 recipes are suggested.

Recipes with ketchup and parsley

We have no browsable recipe that lists both ketchup and parsley.

Can you swap one for the other?

Only partly. Almost all of ketchup's flavor molecules (45 of 45) are also found in parsley, but parsley has 273 that ketchup lacks. Ketchup gives you part of parsley's character without most of its herbal side. This compares flavor only; texture, moisture and the job each does in a dish matter too.

All 45 shared molecules

See every shared molecule grouped by chemical class, with key aromas marked, plus the 0 only in ketchup and the 273 only in parsley.

Ketchup and parsley questions

Do ketchup and parsley go together?

A good pairing. Cooks put them together in 990 recipes, and they share 45 flavor molecules: the top 22% of all ingredient pairs. We hold little distinguishing chemistry for one of them, so the recipe count carries this verdict.

Why do ketchup and parsley taste good together?

Almost everything ketchup carries, parsley has too: 45 of ketchup's 45 flavor molecules also occur in parsley. Among the shared key aromas are ethanol (alcoholic, ethereal) and decanoic acid (soapy, waxy). Most of what they share is background chemistry many foods carry, so the overlap does little for the smell.

What goes with ketchup and parsley?

Whiting is the best third ingredient: top 1% of pairs with ketchup and top 16% with parsley. Sauce and haddock also fit both.

Can I use parsley instead of ketchup?

Only partly. Almost all of ketchup's flavor molecules (45 of 45) are also found in parsley, but parsley has 273 that ketchup lacks. Ketchup gives you part of parsley's character without most of its herbal side. This compares flavor only; texture, moisture and the job each does in a dish matter too.

Compare other ingredients

1
2

Two ingredients gives the full side-by-side breakdown; add a third to see a similarity matrix across all of them (up to 6).

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
Plain text
Compound Kitchen (2026). Compound similarity analysis: Ketchup vs Parsley. https://compkitchen.com/compare/ketchup-vs-parsley. Accessed 2026-11-05.
BibTeX
@misc{compkitchen_compare_compound_similarity_analysis_ketchup_vs_parsley_2026,
  title  = {Compound similarity analysis: Ketchup vs Parsley},
  author = {{Compound Kitchen}},
  year   = {2026},
  url    = {https://compkitchen.com/compare/ketchup-vs-parsley},
  note   = {Accessed: 2026-11-05}
}

Methodology DOI: 10.5281/zenodo.19719459 · CC BY 4.0 · Citations are a request, not a requirement.