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 ↓
Plain Doughnuts
Ingredients
Directions
Make the dough
Rub together the flour, sugar, and butter in a bowl.
Add the baking powder and a pinch of nutmeg.
Form the mixture into a ball and make a hole in the center.
Fry and finish
Fry the dough in hot fat for five minutes until golden.
Drain on paper and sprinkle thickly with sugar.
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 + 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 structure that holds the dough together and sets when fried.
- Butter
- Adds fat that tenderizes the dough and gives a richer texture.
- Baking powder
- Releases gas that helps the doughnut rise and become light in the fryer.
- Milk
- Adds moisture that binds the dough and softens its crumb.
- Sugar
- Adds sweetness and helps the surface brown in the hot fat.
The step that matters
Frying the dough in hot fat. If the fat is not hot enough, the doughnuts absorb grease and turn heavy and oily. If it is too hot, the outside browns before the centre cooks through. Steady heat gives a light, evenly cooked doughnut.
Swap the nutmeg
How well each one fits the dish's main ingredients (flour, butter, sugar, milk):
- Cinnamonfits better
- Nutmegthe original
- Jalapenofits less well
- Capersfits less well
Fit is the average pairing score against flour, butter, sugar, 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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