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 ↓
Light Fruit Cake
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare
Preheat the oven to 350°F (175°C).
Make the batter
In a large bowl, cream together the butter and sugar until light and fluffy.
Add the eggs one at a time, mixing well after each addition.
Sift together the flour and baking soda, then gradually add to the mixture.
Fold in the mixed lemon and orange peel and raisins if using.
Bake
Pour the batter into a greased cake pan and bake for about 1 hour or until a toothpick 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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Lemon + orangetop 1% of all pairsSmell alikestrongCooked together10,634 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Orange + raisintop 13% of all pairsSmell alikemoderateCooked together1,684 recipes
Shared aroma: beta-damascenone (apple, rose).
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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.
- Flour
- Provides the structure that holds the cake together as it bakes.
- Butter
- Adds fat for a tender crumb and rich flavour.
- Light brown sugar
- Adds sweetness, moisture, and helps browning.
- Baking soda
- Reacts to lift the batter and help it rise in the oven.
- Mixed lemon and orange peel
- Adds aromatic citrus flavour throughout the cake.
The step that matters
Adding the eggs one at a time. Beating each egg in fully before the next keeps the butter and sugar emulsified, so the batter holds air and bakes up evenly rather than curdling or turning dense.
Swap the raisin
The recipe marks raisin as optional. How well each one fits the dish's main ingredients (egg, sugar, butter, lemon, orange, flour):
- Vanillafits about as well
- Raisinthe original
- Figfits less well
- Blackberryfits less well
Fit is the average pairing score against egg, sugar, butter, lemon, orange, flour. 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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