Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Fried Brains and Green Peas
Ingredients
Directions
Prepare the peas
Open the can of green peas and drain them into a bowl. If there's not enough liquid, add a little salted water.
Cook the peas for 20 minutes after they boil, then drain and season with salt and pepper.
Stir in a lump of butter and place the peas in a vegetable dish.
Prepare the brains
Wash the calf's brain in several waters, then scald it in boiling water.
Transfer the brain to ice‑cold water for 30 minutes, then wipe it dry.
Fry and serve
Beat the brain into a paste, season, and mix in a little butter, the beaten egg, and enough flour to hold the mixture together.
Fry small cakes of the mixture on a griddle until golden brown, then drain off excess fat.
Serve hot with the fried brains arranged around the mound of peas.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Peas + peppertop 15% of all pairsSmell alikemoderateCooked together5,331 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Peas + buttertop 16% of all pairsSmell alikemoderateCooked together4,887 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Calf's brain
- Forms the main body of the cakes, giving them a soft, rich filling texture.
- Beaten egg
- Binds the brain paste so the cakes hold together while frying.
- Flour
- Absorbs moisture and firms the paste so it can be shaped into cakes.
- Butter
- Adds fat for richness and helps the cakes brown in the pan.
- Green peas
- Provide the sweet, soft vegetable base the fried cakes are served with.
The step that matters
Fry small cakes of the mixture on a griddle until golden brown, then drain off excess fat.. The paste is soft and binds only with flour and egg, so it can fall apart if handled roughly or fried over heat that is too high. Browning develops flavour on the outside while the inside cooks through. Draining removes surplus fat so the cakes stay appetising.
Swap the peas
How well each one fits the dish's main ingredients (pepper, butter, egg, flour):
- Almondfits better
- Walnutfits better
- Chestnutfits better
- Peasthe original
Fit is the average pairing score against pepper, butter, egg, flour. 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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