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 ↓
Fudge Layer 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
Boil the grated chocolate and water until thick as cream.
Cream together the sugar and butter.
Add the beaten egg yolks and milk to the mixture.
Stir in the chocolate, flour, baking powder, and chopped nuts.
Fold in the beaten egg whites.
Bake
Bake in two layers at 350°F (175°C).
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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Chocolate + nutstop 10% of all pairsSmell alikemoderateCooked together440 recipes
Shared aroma: furaneol (caramel, strawberry).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Chocolate + sugartop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
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Flour + nutstop 13% of all pairsSmell alikemoderateCooked together1,180 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
- Creams with the sugar to add richness and a tender crumb.
- Egg yolks
- Add richness and help bind the batter.
- Egg whites
- Folded in last to trap air and lighten the cake's texture.
- Flour
- Provides the structure that holds the cake together as it bakes.
- Baking powder
- Releases gas during baking so the cake rises.
- Grated chocolate
- Adds chocolate flavour and a fudgy richness to the batter.
The step that matters
Fold in the beaten egg whites. Folding gently keeps the air beaten into the whites; stirring vigorously deflates them, leading to a denser, flatter cake.
Swap the nuts
How well each one fits the dish's main ingredients (chocolate, sugar, butter, egg, milk, flour):
- Almondfits better
- Hazelnutfits better
- Pecansfits better
- Nutsthe original
Fit is the average pairing score against chocolate, sugar, butter, egg, milk, flour. 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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