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 ↓
Walnut Cake
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Preheat the oven to 350°F (175°C).
Make the batter
Cream together the butter and sugar.
Add the eggs and mix well.
In a separate bowl, combine the flour and baking powder.
Gradually add the dry ingredients to the wet mixture, alternating with the water.
Fold in the walnut meats.
Pour the batter into a greased cake pan.
Bake
Bake for about 45 minutes or until a toothpick comes out clean.
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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Flour + walnuttop 12% of all pairsSmell alikemoderateCooked together5,873 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Walnut + meattop 13% of all pairsSmell alikemoderateCooked together1,035 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Butter + walnuttop 15% of all pairsSmell alikemoderateCooked together6,832 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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
- Butter
- Adds fat and richness, and helps give the cake a tender crumb.
- Sugar
- Adds sweetness and helps the creamed butter hold air for a lighter texture.
- Eggs
- Add structure and binding, helping the batter set as it bakes.
- Flour
- Forms the main structure of the cake as its proteins set in the oven.
- Baking powder
- Releases gas during baking so the cake rises and becomes light.
- Walnut meats
- Add crunch, nutty flavor and some fat to the batter.
The step that matters
Alternating the dry ingredients with the water. Adding flour in portions alternately with liquid keeps the batter smooth and well combined. Overmixing once flour is added develops gluten, which can make the cake tough.
Swap the walnut
How well each one fits the dish's main ingredients (butter, sugar, flour, egg, meat):
- Almondfits better
- Walnutthe original
- Chestnutfits about as well
- Pecansfits about as well
Fit is the average pairing score against butter, sugar, flour, egg, meat. 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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