Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Citron Pound Cake
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Make the batter
Cream the butter in a large bowl.
Beat in the powdered sugar, flour, and salt.
Add the egg yolks and mix well.
In a separate bowl, beat the egg whites until stiff and fold them into the batter.
Stir in the brandy and the floured citron slices.
Bake
Line two cake pans with buttered paper and pour in the batter.
Bake in a moderate oven at 350°F (175°C) for about 45 minutes.
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.
Photo for illustrative purposes only · Contact us to use it
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 + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Butter + brandytop 15% of all pairsSmell alikemoderateCooked together5,127 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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 sugar to trap air and give the cake a tender, rich crumb.
- Eggs
- Yolks add richness and structure; whipped whites lighten the batter and help it rise.
- All-purpose flour
- Provides the main structure that sets as the cake bakes.
- Powdered sugar
- Sweetens the batter and helps create a fine, even crumb when creamed.
- Citron
- Adds candied fruit flavor and a chewy texture throughout the cake.
- Brandy
- Adds aroma and flavor to the batter.
The step that matters
Folding in the egg whites. Whites beaten until stiff hold air that lifts the batter. Folding gently, rather than stirring, keeps that air from collapsing and gives a lighter cake.
“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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