Why it works: Potato and parsley are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 2,855 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Potato Croquettes
Ingredients
Directions
Prepare the filling
Mash the boiled potatoes thoroughly or pass them through a wire sieve.
Melt the butter in a saucepan.
Add the egg yolk and chopped parsley to the potatoes and mix well.
Shape and coat
Shape the mixture into small croquettes.
Dip each croquette in beaten egg, then coat with breadcrumbs.
Fry
Fry 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.
-
Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Butter + parsleytop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
-
Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Egg + parsleytop 21% of all pairsSmell alikemoderateCooked together18,765 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Boiled potatoes
- Provide the starchy base that mashes into a soft mixture that holds its shape.
- Butter
- Adds richness and fat, giving the filling a smoother, softer texture.
- Egg yolk
- Binds the mashed potato so the croquettes hold together when shaped.
- Egg
- Forms a sticky coating that helps breadcrumbs adhere to the croquettes.
- Breadcrumbs
- Form a crisp, golden outer crust when fried.
The step that matters
Mash the potatoes thoroughly or sieve them. Lumps of potato leave gaps and uneven texture, and the mixture may crack or fall apart when shaped and fried. A smooth, fine mash binds better and gives a uniform croquette.
Swap the potato
How well each one fits the dish's main ingredients (butter, egg, parsley):
- Shallotfits better
- Chivefits better
- Leekfits about as well
- Potatothe original
Fit is the average pairing score against butter, egg, parsley. 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.
More potato croquettes recipes
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.

Potato Rolls78 recipes
Potato Chips53 recipes
Potato Biscuit32 recipes
Potato Snow23 recipes