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 ↓
A Good Plain 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. The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare
Preheat the oven to 400°F (200°C).
In a large bowl, mix the flour, baking powder, salt, spice, and sugar.
Rub in the softened butter until the mixture resembles coarse crumbs.
Stir in the sultanas, currants, and sliced peel.
Make the batter
In a separate bowl, beat the eggs and milk together.
Pour the egg mixture into the dry ingredients and mix until just combined.
Pour the batter into a greased cake pan and bake for 25‑30 minutes 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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Cinnamon + raisintop 1% of all pairsSmell alikemoderateCooked together5,390 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + cinnamontop 9% of all pairsSmell alikemoderateCooked together17,341 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Cinnamon + milktop 10% of all pairsSmell alikemoderateCooked together12,655 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- All-purpose flour
- Provides the main structure that sets as the cake bakes.
- Baking powder
- Releases gas in the batter so the cake rises and becomes light.
- Butter
- Coats flour particles and adds tenderness and richness to the crumb.
- Eggs
- Add structure and help bind the batter as they set.
- Sugar
- Sweetens the cake and contributes to browning and a tender crumb.
- Sultanas and currants
- Add sweetness, chewiness and moisture pockets throughout the cake.
The step that matters
Mixing the batter until just combined. Once liquid meets flour, gluten starts to form. Overmixing makes the cake tough and dense, so stop as soon as no dry flour streaks remain.
Swap the currant
How well each one fits the dish's main ingredients (flour, cinnamon, sugar, butter, raisin, egg, milk):
- Vanillafits better
- Figfits better
- Applefits better
- Currantthe original
Fit is the average pairing score against flour, cinnamon, sugar, butter, raisin, egg, milk. 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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