Why it works: Flour and raisin match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 9,075 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Tennis 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 and sugar together.
Add the yolks of the eggs and whisk well.
Fold in the halved Valencia raisins, quartered cherries, and sultanas.
Sift in the flour and gently fold in the whipped egg whites.
Pour the mixture into a flat tin lined with paper.
Bake and finish
Bake in a moderate oven at 350°F (175°C) until golden.
Once cool, cover with almond icing.
Pour green water icing on top and sprinkle with coconut or chopped almonds, or decorate with royal 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 + raisintop 1% of all pairsSmell alikestrongCooked together9,075 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).
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Sugar + raisintop 13% of all pairsSmell alikemoderateCooked together12,481 recipes
Shared aroma: beta-damascenone (apple, rose).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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 enrich and bind the batter; whipped whites lighten it and help it rise.
- Flour
- Provides the structure that holds the fruit and crumb together as the cake bakes.
- Castor sugar
- Creams with butter for aeration and adds sweetness and a golden browning.
- Valencia raisins
- Add chewy texture and concentrated sweetness throughout the cake.
The step that matters
Folding in the egg whites. Whipped whites hold the air that lifts the batter. Folding gently keeps that air in; vigorous stirring deflates the foam and produces a dense 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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