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 ↓
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.
Make the cake
Preheat the oven to 350°F (175°C).
Beat the egg yolks and reserve the whites of 3 eggs for frosting.
Cream the butter and sugar together until light and fluffy.
Add the egg yolks, part of the flour, and then the milk, mixing well.
Stir in the remaining flour and the chopped walnuts.
Pour the batter into a large baking pan and bake until golden.
Make the frosting and finish
For the frosting, boil 1 cup of sugar and ⅓ cup of water until it reaches a thread stage.
While boiling, pour the syrup into the beaten egg whites and continue to beat until stiff.
Spread the frosting on the cooled cake and mark into squares, placing half a walnut on each square.
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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Milk + strawberrytop 10% of all pairsSmell alikemoderateCooked together1,130 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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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).
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Walnut + meattop 13% of all pairsSmell alikemoderateCooked together1,035 recipes
Shared aroma: 2,4-decadienal (seaweed).
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
- Yolks add richness and structure, while whites whipped into the frosting give it a light, stiff foam.
- Flour
- Forms the cake's main structure once mixed with the liquids and set by heat.
- Butter
- Adds fat that tenderises the crumb and carries flavour.
- Sugar
- Sweetens the cake and helps create a soft, fine crumb when creamed with butter.
- Baking powder
- Releases gas in the batter so the cake rises and becomes lighter.
- Walnut meats
- Add crunch and a nutty flavour that contrasts with the soft crumb.
The step that matters
Pouring the hot syrup into the egg whites while beating. The syrup must be at thread stage and poured in a steady stream while beating. The hot sugar cooks and stiffens the whites into a stable foam; if poured too fast or cooled, the frosting can stay loose or deflate.
Swap the strawberry
How well each one fits the dish's main ingredients (egg, sugar, butter, milk, flour, walnut, meat):
- Vanillafits better
- Raisinfits better
- Figfits better
- Strawberrythe original
Fit is the average pairing score against egg, sugar, butter, milk, flour, walnut, 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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