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 ↓
School 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.
Make the dough
Mix the yeast with a portion of the liquid and a little sugar to form a leaven.
Combine the leaven with the flour and let it rise.
Melt the fat in the remaining liquid and add it along with the eggs and other ingredients to the flour.
Mix everything well and let it rise again.
Shape and bake
Divide the dough into two cakes.
Bake in a moderate oven at 350°F (175°C) for about 2½ hours.
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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Sugar + raisintop 13% of all pairsSmell alikemoderateCooked together12,481 recipes
Shared aroma: beta-damascenone (apple, rose).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Raisin + milktop 15% of all pairsSmell alikemoderateCooked together7,155 recipes
Shared aroma: decanoic acid (acides aroma).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
Flour and milk barely smell alike, yet cooks put them together in 78,219 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
- Flour
- Forms the gluten network that holds the dough and its gas bubbles together.
- Yeast
- Produces carbon dioxide during fermentation, making the dough rise.
- Clarified fat
- Adds richness and a tender crumb by coating flour proteins and limiting toughness.
- Moist sugar
- Feeds the yeast and adds sweetness, moisture and browning in the baked crust.
- Eggs
- Add structure and richness as they set, and help bind the dough.
- Raisins
- Add sweetness, moisture and chewy texture throughout the cake.
The step that matters
Let the dough rise fully before dividing and baking. Yeast needs time to produce enough gas for a light crumb. Under-proofed dough bakes dense, while the structure set by the flour and eggs supports the rise.
Swap the raisin
How well each one fits the dish's main ingredients (flour, sugar, milk, egg):
- Vanillafits about as well
- Raisinthe original
- Figfits less well
- Blueberryfits less well
Fit is the average pairing score against flour, sugar, milk, egg. 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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