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
Prepare the mixture
Mix the mashed potatoes, butter, white pepper, and celery salt, leaving out the egg.
When the mixture is slightly cool, add the yolk of the egg.
Shape and coat
Shape the mixture into rolls and roll them in fine bread crumbs.
Dip the rolls in beaten egg white, then roll in crumbs again.
Fry
Fry in smoking hot lard for one minute.
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
- Provide the bulk and starch that hold the croquette shape and give a soft interior.
- Butter
- Adds fat for richness and a tender, moist texture inside.
- Egg
- Binds the mixture, and the white forms a coating that helps crumbs adhere and brown.
- Bread crumbs
- Form a crisp, browned outer crust when fried.
The step that matters
Fry in smoking hot lard. The fat must be very hot so the crumb coating crisps and browns quickly, sealing the outside before the soft interior absorbs grease or falls apart. Cooler fat makes greasy, loose croquettes.
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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