Why it works: Flour and nutmeg are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 18,623 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Very Rich Citron 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.
Prepare
Preheat the oven to 350°F (175°C).
Beat the butter, sugar, and nutmeg until very light.
Make the batter
Stir in the brandy and ¼ of the flour.
Whisk the eggs thoroughly and add them alternately with the remaining flour, one-third at a time.
Cut the citron into thin, small pieces and stir into the mixture.
Beat all ingredients well together.
Bake and finish
Pour the batter into a prepared baking pan and bake until golden brown.
If desired, ice with lemon-flavored icing.
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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Flour + nutmegtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Rose + nutmegtop 15% of all pairsSmell alikemoderateCooked together1,067 recipes
Shared aroma: methyleugenol (clove, spice).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Brandy + rosetop 15% of all pairsSmell alikemoderateCooked together560 recipes
Shared aroma: beta-damascenone (apple, rose).
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, giving the cake a light, tender crumb.
- Sugar
- Sweetens the cake and helps it brown during baking.
- Flour
- Provides the structure that holds the cake together as it sets.
- Eggs
- Add structure, richness, and binding to the batter.
- Citron
- Adds citrus flavor and chewy pieces throughout the cake.
- Brandy
- Adds aroma and depth of flavor to the batter.
The step that matters
Adding the eggs and flour alternately. Adding the eggs in small portions alternating with the flour helps the batter stay smooth and emulsified. Dumping in all the eggs at once can make the batter curdle, which leads to a coarser, denser cake.
Swap the nutmeg
How well each one fits the dish's main ingredients (butter, sugar, flour, egg, brandy, rose):
- Cinnamonfits about as well
- Nutmegthe original
- Allspicefits less well
- Clovefits less well
Fit is the average pairing score against butter, sugar, flour, egg, brandy, rose. 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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