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.
Prepare
Preheat the oven to 350°F (175°C).
Cream together the butter and sugar.
Mix the batter
Add the egg yolks, sweet milk, and two‑thirds of the flour.
Fold in the egg whites, then add the remaining flour.
Stir in the walnut meats, raisins, and brandy last.
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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Flour + buttertop 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).
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
- Eggs
- Yolks add richness and emulsify, while whites trap air that lifts the cake.
- Flour
- Forms the structure that holds the cake together as it bakes.
- Butter
- Adds fat that makes the crumb tender and rich.
- Sugar
- Sweetens the cake and helps the creamed butter hold air.
- Baking soda
- Reacts with the acid in the batter to produce gas that leavens the cake.
- Cream of tartar
- Acid that works with the baking soda to help the cake rise evenly.
The step that matters
Folding in the egg whites. Egg whites hold air that gives the cake its lift. Folding gently keeps that air in, while stirring hard would deflate the batter and produce a denser cake.
Swap the walnut
How well each one fits the dish's main ingredients (sugar, flour, butter, milk, brandy, egg, cream):
- Almondfits better
- Chestnutfits about as well
- Pistachiofits about as well
- Walnutthe original
Fit is the average pairing score against sugar, flour, butter, milk, brandy, egg, cream. 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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