Why it works: Beef and onion are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,092 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Beef Croquettes
Ingredients
Directions
Prepare the filling
Chop the cold roast beef very fine.
Soak the bread crumbs in stock or milk to moisten.
Melt the butter in a pan, add the onion, and cook until pale yellow.
Season with salt, pepper, and tomato ketchup, then stir until smooth.
Add the beaten egg and mix well.
Shape and fry
When cool, shape the mixture into croquettes.
Dip each croquette in bread crumbs, then beaten egg, and again in bread crumbs.
Fry in hot oil until golden brown.
Drain on paper and serve with tomato or curry sauce.
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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Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beef + tomatotop 8% of all pairsSmell alikemoderateCooked together5,448 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 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
- Cold roast beef
- Forms the main body of the croquettes and gives them their meaty flavour.
- Bread crumbs
- Soaked to add moisture and bind the mixture, and used again to coat for a crisp crust.
- Egg
- Binds the mixture together and helps the coating adhere before frying.
- Butter
- Adds richness and flavour when it cooks the onion.
- Onion
- Adds savoury aroma and flavour once softened in butter.
The step that matters
Shape the mixture only when cool. A warm mixture is soft and sticky, so croquettes can slump or split. Cooling firms the mixture so it holds its shape and the coating stays intact in the hot oil.
Swap the onion
How well each one fits the dish's main ingredients (beef, bread, butter, pepper, tomato, ketchup, egg):
- Capsicumfits better
- Potatofits about as well
- Asparagusfits about as well
- Onionthe original
Fit is the average pairing score against beef, bread, butter, pepper, tomato, ketchup, 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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