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 granulated sugar and butter.
Add the milk, flour, eggs, baking soda, cream of tartar, and lemon extract. Mix well.
Pour the batter into prepared cake pans.
Bake until golden.
Make the filling and assemble
Combine 1 cup of sugar, grated rind and juice of 1 lemon, water, and 1 teaspoon of flour in a saucepan to make the lemon filling.
Boil the mixture until it thickens.
Cool the mixture.
Spread the lemon filling between the layers of cake.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 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
- Butter
- Creams with sugar to give the cake tenderness and a rich texture.
- Eggs
- Provide structure and richness, helping the batter set as it bakes.
- Flour
- Forms the main structure of the cake batter.
- Baking soda
- Reacts with the cream of tartar to produce gas that lifts the batter.
- Cream of tartar
- Acidifies the batter so baking soda reacts and helps the cake rise and stay tender.
- Sugar
- Sweetens the cake and helps it brown and stay moist.
The step that matters
Boil the lemon filling until it thickens. The filling thickens as the flour and sugar mixture is heated, and starch needs to boil to fully thicken. If it is undercooked it stays runny and soaks into the cake layers; the cooling step then lets it set.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, butter, milk, flour, egg, cream):
- Vanillafits better
- Raisinfits better
- Coconutfits better
- Lemonthe original
Fit is the average pairing score against sugar, butter, milk, flour, egg, cream. 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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