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 ↓
Dough Nuts
Ingredients
Directions
Make the dough
Cream together the sugar, butter, and eggs.
Add the sponge and mix in enough flour to form a slack dough.
Roll the dough into balls and let them rise until light.
Fry
Heat the lard in a deep pan.
Make a hole in the center of each ball with your thumb and twirl it to enlarge the hole.
Fry the doughnuts until golden brown.
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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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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
- Sponge
- Its yeast ferments the dough, producing gas that makes the doughnuts rise and turn light.
- Eggs
- They add structure and richness, helping the dough hold its shape and stay tender.
- Butter
- It adds fat, which tenderizes the crumb and gives a richer flavor.
- Sugar
- It adds sweetness and helps the surface brown in the hot fat.
- Flour
- Its proteins form the gluten network that gives the slack dough its structure.
The step that matters
Frying until golden brown. If the lard is too cool, the doughnuts absorb excess grease and turn heavy. If it is too hot, the outside browns quickly while the centre stays raw. Steady, moderate heat cooks the dough through while the surface turns golden.
“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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