Why it works: Flour and parsley are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 16,675 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Fried Perch
Ingredients
Directions
Prepare
Wipe the fish well and dry them with a cloth.
Lightly flour the fish all over.
Fry and serve
Fry the fish in hot lard or drippings for 10 minutes.
Place the fried fish on a hair sieve to drain.
Serve on a hot dish garnished with sprigs of parsley.
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.
-
Flour + parsleytop 12% of all pairsSmell alikemoderateCooked together16,675 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Fish + parsleytop 18% of all pairsSmell alikelowCooked together2,341 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Fish + flourtop 27% of all pairsSmell alikelowCooked together2,532 recipes
Shared aroma: acetaldehyde (pungent, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Perch fish
- Forms the main body of the dish, cooked through by frying.
- Flour
- Forms a light coating that helps the surface brown and crisp in the hot fat.
- Lard or drippings
- Conducts heat to cook the fish and gives the coating its browned, crisp surface.
The step that matters
Drying the fish before flouring. Surface moisture turns to steam in hot fat and makes the flour coating gummy or prevent it from sticking, so the fish should be patted fully dry first.
Swap the parsley
How well each one fits the dish's main ingredients (fish, flour):
- Capersfits better
- Turmericfits better
- Jalapenofits better
- Parsleythe original
Fit is the average pairing score against fish, flour. 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.

Fried Fish120 recipes
Fish Croquettes81 recipes
Scalloped Cod69 recipes
Broiled Fish68 recipes