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 ↓
Coffee Cakes
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
Whisk the eggs, sugar, and coffee essence together in a bowl until frothy and thick.
Melt the butter and stir it in lightly.
Sift the flour and baking powder together, then gently fold them into the mixture.
Bake and finish
Grease about ten small cake tins with clarified butter.
Fill the tins three-quarters full with the batter.
Bake in a moderate oven at 350°F (175°C) for about fifteen minutes.
Let the cakes cool.
Icing with coffee glace icing, if desired.
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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 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).
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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 + coffeetop 17% of all pairsSmell alikelowCooked together4,344 recipes
Shared aroma: beta-damascenone (apple, rose).
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, they trap air and give the cakes their light, airy structure.
- Flour
- Sets the cake's structure as the batter bakes, holding the risen crumb in place.
- Baking powder
- Releases gas when heated, helping the cakes rise in the oven.
- Butter
- Adds richness and a tender texture to the crumb.
- Sugar
- Sweetens the cakes and helps whisk the eggs into a stable, thick foam.
- Coffee essence
- Gives the cakes their coffee flavour throughout the batter.
The step that matters
Fold in the flour and baking powder gently. Overmixing knocks out the air whisked into the eggs and develops gluten in the flour, which makes the cakes dense instead of light and airy.
“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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