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 ↓
Hazel-nut 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 batter
Preheat the oven to 350°F (175°C).
In a bowl, cream together the sugar and butter.
Add the egg and egg yolks, mixing well.
Stir in the milk.
In another bowl, combine the flour and baking powder, then gradually add to the wet mixture.
Divide the batter into layers and bake until golden.
Make the filling and assemble
For the filling, boil 1 cup of sugar and thick cream with chopped hazelnuts until it reaches a taffy-like consistency.
Spread the filling between the baked layers.
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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Flour + hazelnuttop 8% of all pairsSmell alikestrongCooked together464 recipes
Shared aroma: isobutyraldehyde (malty, green).
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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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Creaming with sugar traps air and gives the cake a tender, rich crumb.
- Egg and egg yolks
- Provide structure as they set in the baking, and richness from the yolks.
- Flour
- Forms the cake's structure once it sets in the oven.
- Baking powder
- Releases gas during baking so the layers rise and stay light.
- Sugar
- Sweetens the cake and, when boiled, cooks down to a taffy-like filling.
- Thick cream
- Adds fat and moisture to the filling, giving it a soft, smooth body.
The step that matters
Boiling the filling to taffy-like consistency. Sugar and cream must be cooked until the mixture thickens to the right stage. Undercooked filling stays runny and soaks into the layers, while overcooked filling turns hard and brittle when it cools.
Swap the hazelnut
How well each one fits the dish's main ingredients (sugar, egg, butter, milk, flour, cream):
- Almondfits better
- Pistachiofits about as well
- Chestnutfits about as well
- Hazelnutthe original
Fit is the average pairing score against sugar, egg, butter, milk, flour, 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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