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 batter
Preheat the oven to 350°F (175°C).
Cream the butter and sugar together until light and fluffy.
Add the eggs one at a time, mixing well after each addition.
Sift together the flour, baking soda, and cream of tartar, then add to the mixture alternately with the milk.
Divide the batter into layers and bake until golden.
Make the jelly
For the jelly, combine the lemon juice, lemon rind, and sugar in a saucepan.
Stir until the sugar dissolves, then add the 3 beaten eggs.
Place the mixture in a vessel over boiling water and stir until it thickens.
Assemble and finish
Once cool, spread the jelly between the cake layers.
Sprinkle the top with powdered sugar.
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 + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter 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
- Flour
- Forms the structure that holds the cake's crumb together as it bakes.
- Eggs
- Add structure and richness, and help the jelly thicken when heated.
- Butter
- Adds fat that tenderises the crumb and carries flavour.
- Sugar
- Sweetens the cake and helps create a soft, fine texture when creamed.
- Baking soda
- Reacts with the acid in the batter to produce gas that helps the cake rise.
- Lemon
- Provides acidity and bright aroma in both the jelly and the cake.
The step that matters
Thickening the jelly over boiling water. The eggs thicken as their proteins set, but too much heat or too little stirring can curdle them into grainy lumps. Gentle heat and constant stirring keep the jelly smooth and thick.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, flour, butter, egg, cream, milk):
- Vanillafits better
- Raisinfits better
- Coconutfits better
- Lemonthe original
Fit is the average pairing score against sugar, flour, butter, egg, cream, 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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