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 ↓
Spanish Bun 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 the batter
Preheat the oven to 350°F (175°C).
Cream together the sugar and butter until light and fluffy.
Add the sour milk and baking soda, mixing well.
Beat in the eggs one at a time.
Gradually add the flour, mixing until just combined.
Fold in the raisins and cinnamon.
Bake
Pour the batter into a greased cake pan.
Bake for 30-40 minutes or until a toothpick inserted in the center 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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Raisin + cinnamontop 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).
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Milk + cinnamontop 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
- Eggs
- Bind the batter and add structure as the cake sets in the oven.
- All-purpose flour
- Forms the gluten network that gives the cake its structure.
- Butter
- Adds fat for tenderness and richness, and carries flavor.
- Sugar
- Sweetens the cake and helps it brown and stay moist.
- Baking soda
- Reacts with the sour milk to produce gas that makes the cake rise.
- Sour milk
- Its acidity activates the baking soda and adds moisture.
The step that matters
Adding the baking soda to the sour milk. Baking soda needs an acid to react and release gas for rising. Mixing it fully into the acidic sour milk lets the reaction start evenly, so the cake rises well and has an even crumb.
“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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