Why it works: Milk and butter 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 ↓
Maple Sugar 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 the cake
Preheat the oven to 350°F (175°C).
In a bowl, mix sweet milk, egg whites, baking powder, flour, and butter until smooth.
Divide the batter into layers.
Bake until golden.
Make the frosting
In a saucepan, cook maple sugar until it reaches a hair-like consistency.
Beat the egg whites until stiff.
Gradually stir in the maple sugar syrup until thick.
Spread the maple sugar mixture on the layers of cake.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 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
- Egg whites
- Whipped to stiff peaks, they add lift and a light, airy structure to the frosting.
- Baking powder
- Releases gas in the batter, helping the cake layers rise and turn light.
- Flour
- Provides the main structure that holds the cake layers together as they bake.
- Butter
- Adds fat for tenderness and richness in the crumb.
- Maple sugar
- Cooked into a syrup that sweetens and flavors the frosting, giving it its maple taste.
The step that matters
Cooking the maple sugar to a hair-like consistency. Sugar syrup can crystallize or turn grainy if overcooked or stirred unevenly. Cooking it to the right thread stage and adding it gradually to the whipped whites keeps the frosting smooth and thick.
“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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