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 ↓
Vegetable Croquettes
Ingredients
Directions
Prepare
Grind the eggplant and onions using a vegetable grinder.
Pass the boiled rice and mashed potatoes through a sieve.
Shape and fry
Mix the ground vegetables with the rice, potatoes, salt, sage, celery salt, and eggs until thoroughly combined.
Shape the mixture as desired.
Fry the croquettes in cottonseed 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 + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Sage + celerytop 5% of all pairsSmell alikestrongCooked together723 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Potato + celerytop 7% of all pairsSmell alikemoderateCooked together2,047 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Rice + potatotop 7% of all pairsSmell alikestrongCooked together851 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
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Eggplant + cottonseedtop 7% of all pairsSmell alikestrongCooked together3 recipes
Shared aroma: alpha-pinene (pine, turpentine).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Bind the mixture so the croquettes hold their shape when fried.
- Boiled rice
- Adds bulk and a soft, tender interior to the croquettes.
- Mashed potatoes
- Add starch and moisture that help the mixture hold together while shaping.
- Onions
- Add savoury flavour and moisture to the mixture.
The step that matters
Fry the croquettes in cottonseed oil until golden brown. The mixture is soft and bound only by egg and starch, so it can break apart or absorb oil if the oil is not hot enough or the pieces are overcrowded. Frying until golden brown sets the outside into a crisp crust that holds the shape.
Swap the sage
How well each one fits the dish's main ingredients (onion, eggplant, rice, potato, egg, celery, cottonseed):
- Parsleyfits better
- Capersfits better
- Turmericfits better
- Sagethe original
Fit is the average pairing score against onion, eggplant, rice, potato, egg, celery, cottonseed. 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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