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. 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.
Prepare the batters
Preheat the oven to 350°F (175°C).
Cream together the sugar and butter.
Add the flour, beaten egg whites, milk, and baking powder. Mix well.
Grate the apple and lemon peel.
Add the juice and 1 cup of sugar. Stir together.
In a separate bowl, mix the ingredients for the white part: sugar, sweet milk, and egg whites.
In another bowl, combine the ingredients for the dark part: brown sugar, sour milk, flour, egg yolks, and molasses.
Assemble and bake
Layer the white and dark mixtures in a greased cake pan.
Pour the jelly mixture over the top before baking.
Bake for about 30-40 minutes or until a toothpick comes out clean.
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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Milk + appletop 11% of all pairsSmell alikemoderateCooked together4,104 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
-
Sugar + molassestop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Lemon + appletop 14% of all pairsSmell alikemoderateCooked together7,551 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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
- Egg whites and yolks add structure and lift to the cake crumb.
- Flour
- Forms the structure that holds the cake together as it bakes.
- Butter
- Adds fat for a tender texture and rich flavor.
- Sugar
- Sweetens the cake and helps it brown and keep moisture.
- Baking powder
- Releases gas during baking so the cake rises and becomes light.
- Molasses
- Adds deep sweetness, dark color, and moisture to the dark layer.
The step that matters
Layering the white and dark mixtures. The two batters have different densities and sugar contents, so pouring them carelessly can blur the layers or sink the lighter batter. Layer gently and bake promptly so the batters set in their separate layers.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, egg, butter, flour, milk, apple, molasses):
- Vanillafits better
- Raisinfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against sugar, egg, butter, flour, milk, apple, molasses. 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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