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 ↓
Doughnuts
Ingredients
Directions
Make the dough
Mix flour, sugar, baking powder, salt, and butter until combined.
Add beaten eggs and enough sweet milk to form a soft dough.
Flavor with nutmeg or cinnamon.
Fry
Heat fat in a deep pan.
Drop in doughnuts, frying 5 or 6 at a time until golden brown.
Keep the fat hot to ensure they cook through without burning.
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.
Photo for illustrative purposes only · Contact us to use it
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 + nutmegtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, green).
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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).
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 dough once mixed with liquid.
- Eggs
- Add richness and help bind the dough and give it structure.
- Baking powder
- Releases gas that makes the doughnuts rise and turn light.
- Butter
- Adds fat that tenderizes the dough and gives a richer flavor.
- Sugar
- Adds sweetness and helps the doughnuts brown when fried.
The step that matters
Keep the fat hot. If the fat is too cool, doughnuts absorb excess oil and turn greasy and heavy; if it is too hot, the outside browns and burns before the centre cooks through. Holding the fat at a steady frying temperature gives even cooking and a light, golden result.
Swap the nutmeg
How well each one fits the dish's main ingredients (flour, sugar, butter, egg, milk):
- Cinnamonfits better
- Nutmegthe original
- Jalapenofits less well
- Capersfits less well
Fit is the average pairing score against flour, sugar, butter, egg, milk. 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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