Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Brain Cakes
Ingredients
Directions
Prepare the brains
Wash the brains in salt and water.
Remove the skin from the brains.
Cook the mixture
In a pan, sauté the onion with the bay leaf and peppercorns until soft.
Add the cleaned brains to the pan and cook until firm.
Chop the mixture and mix with eggs, bread crumbs, salt, and pepper.
Fry and serve
Form into cakes and fry in hot fat until golden brown.
Serve with a splash of vinegar.
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 + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Egg + breadtop 13% of all pairsSmell alikemoderateCooked together22,662 recipes
Shared aroma: (e)-2-octenal (fatty, green).
-
Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Onion + breadtop 15% of all pairsSmell alikemoderateCooked together8,676 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Calf's brains
- Form the main body of the cakes and set firm when cooked.
- Eggs
- Bind the chopped mixture so the cakes hold their shape.
- Bread crumbs
- Absorb moisture and add body so the cakes are less soft.
- Onion
- Adds sweetness and savory depth as it softens in the pan.
The step that matters
Cook the brains until firm. Brains must be cooked enough to firm up before chopping and binding. Undercooked brains stay soft and fall apart when formed and fried, while the eggs and crumbs need a firm base to hold the cakes together.
Swap the onion
How well each one fits the dish's main ingredients (egg, bread, pepper, vinegar):
- Capsicumfits better
- Mustardfits better
- Cucumberfits better
- Onionthe original
Fit is the average pairing score against egg, bread, pepper, vinegar. 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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