Why it works: Butter and milk 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 ↓
Egg Rolls
Ingredients
Directions
Make the batter
In a bowl, mix the flour, salt, baking powder, and sugar.
In a separate bowl, beat the egg and combine it with the milk and melted butter.
Pour the wet ingredients into the dry ingredients and mix until smooth.
Fry
Heat oil in a pan and drop spoonfuls of the batter into the hot oil.
Fry until golden brown on both sides, then drain on paper towels.
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 + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter 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
- Flour
- Forms the main structure of the batter once mixed with liquid.
- Egg
- Binds the batter and adds structure as it cooks.
- Baking powder
- Releases gas that makes the batter rise and turn light.
- Milk
- Hydrates the flour and gives the batter its soft, moist texture.
- Butter
- Adds fat for richness and a tender texture.
The step that matters
Frying the spoonfuls of batter. The oil must be hot before the batter goes in. If it is too cool, the batter absorbs oil and turns greasy instead of crisping and browning quickly.
“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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