Why it works: Potato and pepper are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 8,305 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Fish Roe Croquettes
Ingredients
Directions
Make the mixture
Mix the roe with the mashed potatoes.
Add cayenne pepper, black pepper, coarse sea salt, butter, 2 egg yolks, and 1 whole egg.
Shape and coat
Form the mixture into cakes.
Roll each cake in cracker dust, then in the whites of 2 eggs, and again in cracker crumbs.
Fry
Fry in a very hot pan with plenty of grease.
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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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Roe + eggtop 14% of all pairsSmell alikemoderateCooked together243 recipes
Shared aroma: (e)-2-octenal (fatty, green).
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Roe + buttertop 14% of all pairsSmell alikelowCooked together442 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
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Roe + potatotop 15% of all pairsSmell alikelowCooked together42 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Roe
- Provides the main flavour and the body of the croquette filling.
- Irish potatoes
- Adds bulk and moisture, helping the mixture hold together when shaped.
- Eggs
- Bind the mixture and set when cooked, holding the croquettes together.
- Cracker dust
- Forms a crisp, browned outer coating during frying.
The step that matters
Frying in a very hot pan with plenty of grease. If the fat is not hot enough, the coating absorbs oil and turns greasy and soft before it browns. A hot pan with ample fat seals the crumb quickly, so the croquettes stay crisp and hold their shape.
Swap the potato
How well each one fits the dish's main ingredients (roe, pepper, egg, butter):
- Chivefits about as well
- Potatothe original
- Capsicumfits about as well
- Asparagusfits about as well
Fit is the average pairing score against roe, pepper, egg, butter. 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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