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 ↓
Nut Bars
Ingredients
Directions
Make the dough
Sift flour, salt, and baking powder into a bowl.
Rub in the butter and add the nuts and sugar.
Mix to a rather stiff dough with the egg and milk.
Shape and cook
Turn onto a floured board and roll out to ⅔ inch thick.
Cut into bars of convenient size.
Fry in hot fat 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 + 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 + nutstop 13% of all pairsSmell alikemoderateCooked together1,180 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 of the dough that holds the bars together.
- Butter
- Rubbed into the flour to add tenderness and richness.
- Baking powder
- Releases gas that helps the bars rise and become light.
- Egg
- Binds the dough and adds structure as it sets.
- Nuts
- Add crunch, flavour and texture to the bars.
- Sugar
- Adds sweetness and helps the surface brown during frying.
The step that matters
Fry in hot fat until golden brown. If the fat is not hot enough, the bars soak up oil and turn greasy before the outside browns and the inside cooks through. Hot fat seals the surface quickly for a crisp, golden result.
Swap the nuts
How well each one fits the dish's main ingredients (flour, sugar, butter, milk, egg):
- Almondfits better
- Chestnutfits better
- Milletfits better
- Nutsthe original
Fit is the average pairing score against flour, sugar, butter, milk, egg. 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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