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 ↓
Caramel Cake
Ingredients
Directions
The book says “a hot oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Make the cake
Cream together the sugar and butter, then add the eggs and mix well.
Stir in the milk.
In a separate bowl, combine the flour and baking powder, then add to the wet mixture.
Pour the batter into a greased cake pan.
Bake at 350°F (175°C) until a toothpick comes out clean.
Make the icing and finish
For the icing, boil ¾ cup milk, 1 cup sugar, and the chocolate together for five minutes.
Remove from heat and stir in the butter until nearly cold, then frost the 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 + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + chocolatetop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
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Milk + chocolatetop 13% of all pairsSmell alikemoderateCooked together9,128 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
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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 trap air, giving the cake a tender crumb and rich flavor.
- Eggs
- Bind the batter and add structure and richness to the crumb.
- Flour
- Forms the main structure of the cake as its proteins set during baking.
- Baking powder
- Releases gas during baking so the cake rises and becomes light.
- Sugar
- Sweetens the cake and helps it brown and stay moist.
The step that matters
Remove from heat and stir in the butter until nearly cold. If the icing is still very hot, the butter melts fully and the icing turns greasy and runny instead of thick. Waiting until it is nearly cold lets it thicken into a spreadable frosting.
“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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