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 ↓
Chocolate 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.
Prepare the batter
Preheat the oven to 350°F (175°C).
Sift the flour.
In a bowl, cream the butter and sugar together.
Add the eggs and sweet milk, mixing well.
Combine the dry ingredients: flour, cream of tartar, and baking soda.
Gradually add the dry mixture to the wet ingredients, mixing until smooth.
Bake and make the icing
Pour the batter into jelly pans and bake until a toothpick comes out clean.
For the icing, combine sugar, sweet milk, and chocolate in a saucepan.
Bring to a boil and cook until it thickens enough to spread between layers.
Add lemon extract to the icing and mix well.
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).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Cream + chocolatetop 11% of all pairsSmell alikemoderateCooked together5,466 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 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 and give the cake a tender, rich crumb.
- Eggs
- Add structure and richness, helping the batter set as it bakes.
- Flour
- Forms the structure of the cake once its proteins set in the oven.
- Cream of tartar
- Acidic powder that works with baking soda to lift the batter and stabilize its texture.
- Baking soda
- Reacts with the acid in the batter to produce gas that makes the cake rise.
- Chocolate
- Adds flavor and body to the icing, which thickens as it cooks.
The step that matters
Cooking the icing until it thickens. Sugar, milk and chocolate must boil long enough for the mixture to thicken to a spreadable consistency. Too little cooking leaves a runny icing that will not hold between layers, while overcooking can make it stiff and grainy as it cools.
Swap the lemon
How well each one fits the dish's main ingredients (butter, sugar, egg, milk, flour, cream, chocolate):
- Vanillafits better
- Raisinfits better
- Coconutfits better
- Lemonthe original
Fit is the average pairing score against butter, sugar, egg, milk, flour, cream, chocolate. 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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