Why it works: Flour and walnut are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 5,873 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Nut Bread
Ingredients
Directions
The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Make the batter
Beat the egg and add the sugar.
Stir in the sweet milk.
Sift together the baking powder and flour, then add to the mixture.
Fold in the chopped walnuts.
Bake
Let the batter rise in the pan for 15 minutes.
Bake in a slow oven at 300°F (150°C) for 1 hour.
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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Flour + walnuttop 12% of all pairsSmell alikemoderateCooked together5,873 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).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + walnuttop 16% of all pairsSmell alikemoderateCooked together3,236 recipes
Shared aroma: 1-hexanal (fruit).
Milk and flour barely smell alike, yet cooks put them together in 78,219 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
- Egg
- Binds the batter and adds structure as it sets in the oven.
- Baking powder
- Releases gas in the batter, helping the bread rise and become light.
- Flour
- Forms the main structure of the bread as it bakes.
- Sugar
- Adds sweetness and helps the crust brown during baking.
- Walnuts
- Add crunch and nutty flavour throughout the loaf.
The step that matters
Let the batter rise in the pan for 15 minutes. Baking powder starts releasing gas as soon as it is wet, so the batter should be in the pan and resting before it goes into the oven. Waiting too long can let much of that gas escape before the structure sets, leaving a denser loaf.
Swap the walnut
How well each one fits the dish's main ingredients (egg, sugar, milk, flour):
- Almondfits better
- Milletfits better
- Chestnutfits better
- Walnutthe original
Fit is the average pairing score against egg, sugar, milk, 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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