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 ↓
Apple Jelly Cake
Ingredients
Directions
Make the apple filling
Combine grated apples, lemon juice and rind, ½ cup sugar, and 1 beaten egg in a tin basin.
Simmer with constant stirring until cooked.
Set aside to cool.
Make the batter
Beat egg whites and yolks separately in a separate bowl.
Mix 1½ cups sugar and ½ cup softened butter until creamy.
Add ½ cup sweet milk to the butter mixture and mix well.
Sift in 4 cups flour and 3 teaspoons baking powder, mixing until combined.
Divide the batter into four equal parts and pour into baking tins or jelly pans.
Bake and assemble
Bake until golden.
Spread the cooled apple mixture on the hot 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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Apple + milktop 11% of all pairsSmell alikemoderateCooked together4,104 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Apple + lemontop 14% of all pairsSmell alikemoderateCooked together7,551 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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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
- Apples
- Provide moisture and tart fruit flavour that forms the jelly-like filling.
- Eggs
- Bind the filling and add structure and richness to the cake batter.
- Butter
- Adds fat for a tender crumb and rich flavour.
- All-purpose flour
- Forms the main structure of the cake as it sets in the oven.
- Baking powder
- Releases gas during baking so the cake rises and becomes light.
- Sugar
- Sweetens the filling and batter and helps the cake brown.
The step that matters
Spread the cooled apple mixture on the hot cake. The filling must be fully cooled before spreading, so it stays thick rather than soaking into the warm crumb and running. The cake should be hot from the oven so the filling sinks slightly into the surface and sets as it cools.
Swap the apple
How well each one fits the dish's main ingredients (lemon, sugar, egg, milk, butter, flour):
- Vanillafits better
- Raisinfits better
- Figfits better
- Applethe original
Fit is the average pairing score against lemon, sugar, egg, milk, butter, flour. 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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