Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Potato Croquettes
Ingredients
Directions
Make the mixture
Mix the mashed potatoes, butter, white pepper, and celery salt, excluding the egg, until very light.
When slightly cool, add the yolk of the egg and mix well.
Shape and coat
Shape the mixture into rolls and roll in fine bread crumbs.
Dip in the beaten egg white, then roll in crumbs again.
Fry
Fry in hot lard for one minute 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.
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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + celerytop 7% of all pairsSmell alikemoderateCooked together2,047 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Celery + oniontop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
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Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mashed potatoes
- Provides the bulk and soft interior that holds the croquette together.
- Butter
- Adds fat for richness and a smoother, more tender texture.
- Egg
- The yolk enriches and binds the mixture, while the white helps crumbs stick.
- Bread crumbs
- Form the outer coating that browns and crisps when fried.
The step that matters
Frying in hot lard. Hot fat sets and browns the crumb coating quickly, so less oil soaks in. Cool fat makes croquettes greasy and can let the coating fall off.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (potato, butter, white pepper, celery, egg, bread):
- Asparagusfits better
- Chivefits better
- Leekfits better
- Onionthe original
Fit is the average pairing score against potato, butter, white pepper, celery, egg, bread. 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.
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