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 ↓
Rich Fruit 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).
Make the batter
In a large bowl, beat the eggs and mix in the butter until smooth.
Add the flour, mixed spice, golden syrup, baking soda, baking powder, and a pinch of salt.
Stir in the sugar, currants, raisins, sultanas, and candied peel.
Add milk gradually until the mixture reaches a nice consistency.
Bake
Pour the batter into a greased cake tin.
Bake for about 1.5 hours or until a skewer comes out clean.
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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Syrup + sugartop 6% of all pairsSmell alikestrongCooked together5,842 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Currant + raisintop 10% of all pairsSmell alikelowCooked together6,180 recipes
Shared aroma: gamma-nonanolactone (coconut, creamy).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + raisintop 13% of all pairsSmell alikemoderateCooked together12,481 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
- Eggs
- Bind the batter and add structure as they set during baking.
- Butter
- Adds richness and a tender crumb through fat.
- Flour
- Forms the main structure of the cake as it bakes.
- Baking soda
- Reacts with the acidic golden syrup to help the cake rise.
- Baking powder
- Releases gas during baking to lighten the crumb.
- Sugar
- Sweetens the cake and helps it brown during baking.
The step that matters
Adding the milk gradually. The batter should be loose enough to bake evenly without becoming runny. Adding milk a little at a time lets you judge the consistency, since flour absorbs liquid at different rates and overmixing can toughen the crumb.
Swap the currant
How well each one fits the dish's main ingredients (egg, butter, flour, syrup, sugar, raisin, lemon):
- Vanillafits better
- Figfits better
- Orangefits better
- Currantthe original
Fit is the average pairing score against egg, butter, flour, syrup, sugar, raisin, lemon. 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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