Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓
Layer Cake
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure. The book gives no cooking times; 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 400°F (200°C).
Beat the eggs and sugar until well combined.
Add the flour, milk, melted butter, cream of tartar, baking soda, and vanilla; mix 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
For the filling, combine 1 cup water and 1 cup sugar in a double boiler.
Boil and thicken the mixture with 2 heaping tablespoons of flour, stirring constantly.
Flavor the filling with vanilla and let it cool before using.
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.
Photo for illustrative purposes only · Contact us to use it
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 + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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 with sugar to trap air, giving the cake structure and lift.
- Flour
- Forms the cake's main structure and, in the filling, thickens the mixture.
- Sugar
- Sweetens the cake and helps keep it tender and moist.
- Baking soda
- Reacts with the acidic cream of tartar to release gas, helping the cake rise.
- Cream of tartar
- Acidifies the batter so it reacts with baking soda, aiding rise and a tender crumb.
- Melted butter
- Adds fat for richness, moisture and a tender texture.
The step that matters
Thickening the filling with flour. Flour must be stirred constantly while boiling so it dissolves evenly and thickens smoothly; if it sits, lumps form and the filling can scorch on the bottom of the pan.
“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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