Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Nut and Potato Croquettes
Ingredients
Directions
Make the mixture
In a bowl, combine the chopped walnuts, mashed potatoes, and bread crumbs.
Stir in the beaten eggs, salt, pepper, onion juice, lemon juice, and beef stock.
Chill the mixture until firm, then shape into croquettes.
Coat and fry
Dip each croquette in beaten egg, then roll in fine bread crumbs.
Fry in deep 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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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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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 + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Walnut + lemontop 10% of all pairsSmell alikestrongCooked together2,149 recipes
Shared aroma: 2-nonenal (fatty, green).
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Pepper + oniontop 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
- Black walnut meats
- Provide the main nutty bulk and chewy texture in the croquettes.
- Mashed potatoes
- Add starch and body that hold the mixture together and keep the interior moist.
- Soft bread crumbs
- Absorb moisture and add softness so the mixture can be shaped.
- Eggs
- Bind the mixture and set when heated, and their coating helps the crumbs brown.
The step that matters
Chill until firm before shaping. The mixture is soft and moist from the potatoes, egg and stock. Chilling lets the starch and egg firm up so the croquettes keep their shape and do not fall apart in hot oil.
Swap the onion
How well each one fits the dish's main ingredients (walnut, meat, potato, bread, egg, pepper, lemon):
- Asparagusfits better
- Capsicumfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against walnut, meat, potato, bread, egg, pepper, lemon. 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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