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 ↓
Crullers
Ingredients
Directions
Make the dough
In a bowl, combine milk and sugar.
Add beaten egg whites and yolks, baking powder, butter, and nutmeg.
Mix in enough flour to form a thick paste.
Shape and fry
Cut into shapes.
Drop shapes into boiling lard or beef fat.
Fry 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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Nutmeg + flourtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 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).
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
- Eggs
- Provide structure and richness, with the beaten whites adding lightness to the dough.
- Baking powder
- Releases gas in the dough, helping the crullers puff and become light.
- Butter
- Adds fat, giving the dough tenderness and a richer flavor.
- Flour
- Forms the thick paste that gives the crullers their body and shape.
- Sugar
- Adds sweetness and helps the fried exterior turn golden brown.
The step that matters
Drop shapes into boiling lard or beef fat. The fat must be hot enough to seal the outside quickly. If it is too cool, the dough absorbs oil, becomes greasy, and cooks unevenly before it browns.
Swap the nutmeg
How well each one fits the dish's main ingredients (milk, sugar, egg, butter, flour):
- Cinnamonfits better
- Nutmegthe original
- Jalapenofits less well
- Capersfits less well
Fit is the average pairing score against milk, sugar, egg, butter, flour. 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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