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 ↓
Coffee 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 bowl, cream together the brown sugar and butter.
Add the cold coffee and eggs, mixing well.
In another bowl, combine the flour, baking powder, and spices.
Gradually add the dry ingredients to the wet mixture.
Fold in the raisins.
Bake
Pour the batter into a greased baking pan.
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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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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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Egg + flourtop 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
- Brown sugar
- Adds sweetness and moisture, and helps the cake brown and stay tender.
- Butter
- Adds fat for a tender crumb and rich flavor.
- Eggs
- Add structure and help bind the batter as it sets.
- Flour
- Forms the main structure of the cake as it bakes.
- Baking powder
- Releases gas that makes the cake rise and lighten.
- Cold coffee
- Adds liquid and a deep, roasty aroma to the batter.
The step that matters
Gradually add the dry ingredients to the wet mixture. Adding flour in portions and mixing gently limits gluten development, keeping the cake tender rather than tough. Overmixing after the flour goes in can make the crumb dense.
Swap the raisin
How well each one fits the dish's main ingredients (sugar, butter, coffee, egg, flour):
- Vanillafits about as well
- Raisinthe original
- Figfits less well
- Bananafits less well
Fit is the average pairing score against sugar, butter, coffee, egg, 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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