Why it works: Walnut and butter are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 6,832 recipes. Both carry eucalyptol, which smells eucalyptus, herbal. 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).
Grease the pans with butter.
Make the batter
In a bowl, beat the egg whites until stiff peaks form.
In another bowl, mix the sugar and cornstarch.
Chop the walnuts and fold them into the sugar mixture.
Gently fold the egg whites into the walnut mixture.
Bake
Drop spoonfuls of the batter into the pans and bake 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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Walnut + buttertop 15% of all pairsSmell alikemoderateCooked together6,832 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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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).
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Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Egg + walnuttop 23% of all pairsSmell alikemoderateCooked together6,037 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg whites
- Whipped to stiff peaks, they trap air and give the cake its light, airy structure.
- Sugar
- Sweetens the cake and helps stabilise the whipped egg whites.
- Cornstarch
- Absorbs moisture and softens the crumb, giving a tender texture.
- Walnuts
- Add texture and a nutty flavour, and their oils contribute richness.
The step that matters
Gently fold the egg whites into the walnut mixture. Whipped egg whites hold their air only if handled gently. Vigorous stirring deflates the foam, which makes the cake dense and flat after baking.
Swap the walnut
How well each one fits the dish's main ingredients (egg, sugar, butter):
- Almondfits better
- Pecansfits better
- Filbertfits about as well
- Walnutthe original
Fit is the average pairing score against egg, sugar, butter. 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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