Why it works: Flour and butter 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 ↓
Diet-bread Cake
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Make the sugar syrup
Boil the water and loaf sugar together, then skim off any impurities.
Prepare the eggs
Beat the eggs very finely, leaving out half the whites.
Make the batter
Pour the boiled sugar into the eggs and whisk for at least 15 minutes.
Gently stir in the fine flour until well combined.
Bake and serve
Grease square tins and line them with white paper, filling them three-quarters full.
Sprinkle loaf sugar on top of the batter.
Bake in a preheated oven at 400°F (200°C) until done, then remove from the molds while hot.
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 + buttertop 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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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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
- Eggs
- Whisked with sugar syrup to trap air, giving the cake its light, open structure.
- Fine flour
- Provides the starch and gluten-forming structure that sets the cake as it bakes.
- Loaf sugar
- Sweetens the cake and, dissolved into a syrup, helps the batter hold its whipped volume.
The step that matters
Whisking the eggs and sugar syrup. The batter depends on air beaten into the eggs. Whisking for the full time while the syrup is still warm builds a stable foam, and gently folding in the flour keeps that air from collapsing, which would make the cake dense.
“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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