Why it works: Lemon and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Fish Croquettes
Ingredients
Directions
Prepare
Mix the fish, croquette sauce, salt, pepper, lemon juice, onion juice, and parsley in a bowl.
Shape the mixture into croquettes.
Coat and fry
Dip each croquette in breadcrumbs, then in the beaten egg, and again in breadcrumbs.
Fry the croquettes in hot oil until golden brown.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Photo for illustrative purposes only · Contact us to use it
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
-
Lemon + parsleytop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cooked fish
- Forms the main body and flavor of the croquettes.
- Croquette sauce
- Binds the fish together and keeps the mixture moist.
- Egg
- Helps the breadcrumb coating adhere and set during frying.
- Breadcrumbs
- Form a crisp, golden outer crust when fried.
The step that matters
Coating and frying the croquettes. The double coating of breadcrumbs, egg and breadcrumbs seals the shaped mixture. Frying in hot oil quickly browns the crust and sets the egg, so the inside stays moist rather than absorbing grease.
Swap the onion
How well each one fits the dish's main ingredients (fish, sauce, pepper, lemon, parsley, egg):
- Shallotfits better
- Capsicumfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against fish, sauce, pepper, lemon, parsley, egg. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Lemon Sauce236 recipes
Fried Fish120 recipes
Scalloped Cod69 recipes
Broiled Fish68 recipes