Why it works: Milk and butter 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. 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.
Make the cake
Preheat the oven to 350°F (175°C).
In a bowl, beat the eggs and mix in the sugar, milk, butter, flour, and baking powder until smooth.
Pour the batter into a greased cake pan and bake for 25-30 minutes or until a toothpick comes out clean.
Make the filling and assemble
For the filling, combine 1 cup of sugar, walnut-sized butter, and 4 tablespoons of cold water in a saucepan.
Add the grated rind and juice of 2 lemons, stir, and cook over low heat until thickened.
Once the cake is cool, spread the lemon filling between the 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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Lemon + walnuttop 10% of all pairsSmell alikestrongCooked together2,149 recipes
Shared aroma: 2-nonenal (fatty, green).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + walnuttop 12% of all pairsSmell alikemoderateCooked together5,873 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 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
- Eggs
- Beaten eggs add structure and help the cake batter rise and set.
- Butter
- Adds fat for a tender crumb and richness to the cake and filling.
- Baking powder
- Releases gas in the batter, helping the cake rise light and airy.
- Lemons
- Rind and juice give the filling its bright acidity and aroma.
The step that matters
Cook the lemon filling over low heat until thickened. Gentle heat lets the sugar, water and lemon juice thicken slowly without scorching or curdling. Overheating can burn the sugar or cause the filling to break down rather than set smoothly.
Swap the walnut
How well each one fits the dish's main ingredients (egg, sugar, milk, butter, flour, lemon):
- Almondfits better
- Pistachiofits about as well
- Milletfits about as well
- Walnutthe original
Fit is the average pairing score against egg, sugar, milk, butter, flour, lemon. 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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