Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Jelly Roll
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.
Prepare the batter
Preheat the oven to 400°F (200°C).
Cream the butter and sugar until very soft.
Beat in the eggs one by one, continuing to beat for 5 minutes.
Mix the flour, salt, and baking powder together.
Gently fold the dry ingredients into the egg mixture, then add the milk.
Spread the mixture evenly in a greased and paper-lined baking tin, with the paper edges higher than the tin.
Bake
Bake for 10 to 12 minutes, or until spongy and lightly browned.
Turn the cake out onto sugared paper, brown side down.
Fill and roll
Spread with jelly and roll up lightly.
Melt a little jelly and brush it over the top of the roll, then place a line of cherries down the center.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Milk + red curranttop 18% of all pairsSmell alikemoderateCooked together193 recipes
Shared aroma: isoamyl acetate (banana, pear).
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Egg + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Beaten into the batter, they trap air and set to give the sponge its structure.
- Butter
- Creamed with sugar, it traps air and adds softness and richness to the crumb.
- Sugar
- Adds sweetness and, with the butter, helps aerate the batter; it also browns the surface.
- Baking powder
- Releases gas in the oven, lifting the batter so the sponge rises.
- Milk
- Adds moisture and loosens the batter so it spreads evenly.
- Red currant jelly
- Adds sweetness and a tart fruit flavour to the filling.
The step that matters
Bake only until spongy and lightly browned. A sponge baked just until it springs back stays moist and flexible enough to roll. Overbaking dries the crumb, so it cracks and splits when rolled up with the jelly.
Swap the red currant
How well each one fits the dish's main ingredients (egg, butter, sugar, milk):
- Vanillafits better
- Figfits better
- Coconutfits better
- Red currantthe original
Fit is the average pairing score against egg, butter, sugar, 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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