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 ↓
Lemon Jelly 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.
Make the cake
Preheat the oven to 350°F (175°C).
Cream together the sugar and butter.
Add the flour, sweet milk, eggs, and baking powder; mix well.
Pour the batter into prepared cake pans and bake until golden.
Make the filling and assemble
For the filling, combine sugar, butter, eggs, and lemon juice in a saucepan.
Boil the mixture until it thickens to a jelly-like consistency.
Let the filling cool, then spread it between the cake layers.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Milk + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, 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
- Eggs
- Add structure and richness to the cake and set the lemon filling as it thickens.
- Butter
- Adds fat for a tender crumb and richness to the cake and filling.
- Sugar
- Sweetens the cake and filling and helps the filling thicken into a jelly-like texture.
- Flour
- Provides the main structure that holds the cake's rise and crumb together.
- Baking powder
- Releases gas in the batter so the cake rises and becomes light.
- Lemon juice
- Adds acidity and bright lemon flavour that balances the sweet filling.
The step that matters
Boil the filling until it thickens. The eggs and lemon juice must be cooked enough to thicken into a set, jelly-like filling. Undercooking leaves it runny, while overcooking can cause the eggs to scramble.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, butter, flour, milk, egg):
- Vanillafits better
- Raisinfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against sugar, butter, flour, 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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