Why it works: Onion and potato 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 ↓
Meat and Potato Croquettes
Ingredients
Directions
Make the base
In a stewpan, melt the butter and sauté the minced onion until it simmers.
Add the flour and stir until smooth and frothy.
Pour in the milk, season with salt and pepper, and bring to a boil while stirring.
Mix in the chopped meat and mashed potato thoroughly, then spread on a plate to cool.
Shape and fry
Once cool, shape the mixture into balls or rolls.
Dip each in the beaten egg, then roll in cracker or bread crumbs.
Fry in hot lard for about 2 minutes until golden brown.
Remove with a skimmer and drain on brown paper.
Serve hot.
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.
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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Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Pepper + potatotop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Milk + potatotop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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Onion + peppertop 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
- Butter
- Adds fat and richness to the onion and forms the base of the roux.
- Flour
- Thickens the milk into a smooth sauce that binds the mixture together.
- Milk
- Hydrates the flour to form a thick sauce that gives the croquettes moisture.
- Cold meat
- Provides the main savory filling and body of the croquettes.
- Mashed potato
- Adds bulk and softness, helping the mixture hold its shape when cooled.
- Beaten egg
- Coats the shapes so the crumbs adhere and set into a crisp crust when fried.
The step that matters
Cool the mixture fully before shaping. A warm, soft mixture is sticky and loosens as it cools, so shaping it too early makes it hard to form and prone to cracking. Chilling firms the starch and fat so the shapes hold together in the hot lard.
Swap the onion
How well each one fits the dish's main ingredients (butter, flour, milk, pepper, meat, potato, egg):
- Asparagusfits better
- Capsicumfits better
- Chivefits better
- Onionthe original
Fit is the average pairing score against butter, flour, milk, pepper, meat, potato, 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.
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