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 ↓
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.
Make the cake
Preheat the oven to 350°F (175°C).
In a bowl, cream together the sugar and butter.
Add the milk, cream of tartar, baking soda, and flour, mixing well.
Stir in the grated chocolate and chopped walnuts.
Divide the batter into three layers and bake until a toothpick comes out clean.
Make the frosting
For the frosting, melt the grated chocolate in a saucepan.
Add the sugar and milk, then boil for five minutes.
Stir in the chopped walnuts and mix until it begins to thicken.
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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Cream + buttertop 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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Chocolate + walnuttop 10% of all pairsSmell alikemoderateCooked together1,548 recipes
Shared aroma: 3-ethyl-2,5-dimethylpyrazine (roasted, nutty).
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Cream + chocolatetop 11% of all pairsSmell alikemoderateCooked together5,466 recipes
Shared aroma: delta-decalactone (sweet, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Forms the structure that holds the cake's crumb together as it bakes.
- Butter
- Adds fat that tenderizes the crumb and carries flavor.
- Baking soda
- Reacts with acidic ingredients to produce gas that makes the cake rise.
- Cream of tartar
- Provides acid that works with baking soda to help the cake rise and stay tender.
- Grated chocolate
- Contributes rich chocolate flavor and some fat to the batter and frosting.
- Sugar
- Sweetens the cake and helps brown the crust while tenderizing the crumb.
The step that matters
Boiling the frosting and judging when it thickens. Boiling concentrates the sugar, and as the mixture cools it sets firmer. Boiling too long or stirring too late can make the frosting stiff or grainy, while stopping too early leaves it runny.
Swap the walnut
How well each one fits the dish's main ingredients (sugar, milk, cream, butter, flour, chocolate):
- Almondfits better
- Hazelnutfits better
- Pistachiofits better
- Walnutthe original
Fit is the average pairing score against sugar, milk, cream, butter, flour, 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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