Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Fish Balls
Ingredients
Directions
Prepare
Cook the codfish with the potatoes in a pot until the potatoes are done.
Drain and mash the fish and potatoes together, removing any bones from the fish.
Mix and finish
Add milk, white pepper, and butter; mix thoroughly.
Let the mixture cool, then add the beaten egg if desired.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Potato + milktop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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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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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Milk + eggtop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Codfish
- Provides the main savory flavor and the fish texture of the balls.
- Potatoes
- Add bulk and a soft, starchy body that holds the mixture together.
- Butter
- Adds fat for richness and a smoother, more tender texture.
- Milk
- Adds moisture so the mash is soft and easy to shape.
- Egg
- Binds the mixture so it holds its shape when formed and cooked.
The step that matters
Let the mixture cool before adding the egg. Adding beaten egg to a hot mash can scramble it unevenly and weaken binding, so cooling first keeps the egg evenly mixed and helps the balls hold together.
Swap the white pepper
How well each one fits the dish's main ingredients (potato, milk, butter, egg):
- Nutmegfits better
- Cinnamonfits better
- Parsleyfits better
- White pepperthe original
Fit is the average pairing score against potato, milk, butter, 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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