Why it works: Onion and cheese are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 4,849 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Cheese Croquettes
Ingredients
Directions
Make the mixture
Mix the white sauce, grated onion, and cheese together.
Allow the mixture to cool, then fold in the beaten egg whites.
Chill the mixture, then cut it into oblong pieces.
Coat and fry
Dip each piece in breadcrumbs.
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.
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 + cheesetop 16% of all pairsSmell alikemoderateCooked together4,849 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Sauce + cheesetop 19% of all pairsSmell alikelowCooked together1,987 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Sauce + oniontop 19% of all pairsSmell alikelowCooked together10,474 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Cheese + eggtop 28% of all pairsSmell alikemoderateCooked together6,253 recipes
Shared aroma: 2-nonenal (fatty, green).
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Onion + eggtop 34% of all pairsSmell alikelowCooked together23,333 recipes
Shared aroma: 2,4-decadienal (seaweed).
Sauce and onion barely smell alike, yet cooks put them together in 10,474 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- White sauce
- Forms the creamy base that holds the cheese and gives the croquettes body.
- Cheese
- Provides rich flavor and, once melted, a soft and stretchy interior.
- Egg whites
- Whipped to stiff peaks, they lighten the mixture and help it puff slightly when cooked.
- Breadcrumbs
- Form a crisp, golden outer crust during frying.
The step that matters
Chill the mixture before cutting. The mixture must be firm enough to hold its shape. Chilling lets it set, so the pieces keep their oblong form and do not slump or leak in hot oil.
Swap the onion
How well each one fits the dish's main ingredients (sauce, cheese, egg):
- Mustardfits better
- Capsicumfits better
- Welsh onionfits better
- Onionthe original
Fit is the average pairing score against sauce, cheese, 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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