Why it works: Chocolate and cocoa powder match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 1,587 recipes mention both. Both carry 2-ethyl-3,6-dimethylpyrazine, which smells roasted, nutty. The science ↓
The recipe
14-24 cupcakesIngredients
Contains: egg, milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Method written by CompKitchen from the ingredient list. Not the original author's method, not kitchen-tested.
Heat the oven to 350°F (177°C) and line muffin pans with paper liners.
Whisk the flour, unsweetened cocoa powder, baking soda and salt in a bowl until evenly combined.
Beat the unsalted butter with the sugar and light brown sugar until light and fluffy, about 3 minutes.
Beat in the eggs one at a time, then the vanilla. Mix in the buttermilk, sour cream and cooled coffee until smooth.
Add the dry ingredients to the wet mixture in two additions, mixing on low just until no dry streaks remain.
Divide the batter among the liners, filling each about two-thirds full. Bake 18 to 20 minutes, until a toothpick inserted in the center comes out clean.
Cool the cupcakes in the pans for 5 minutes, then move them to a rack and let them cool completely.
For the frosting, beat the butter until creamy. Add the unsweetened cocoa and powdered sugar and beat on low until combined.
Add the milk, vanilla extract and cooled coffee, then beat on medium for 3 minutes until smooth and fluffy.
Spread or pipe the frosting over the completely cooled cupcakes and serve.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.
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Chocolate + cocoa powdertop 2% of all pairsAroma overlapstrongMentioned together1,587 recipes
Shared aroma: 2-ethyl-3,6-dimethylpyrazine (roasted, nutty).
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Chocolate + vanillatop 2% of all pairsAroma overlapmoderateMentioned together10,018 recipes
Shared aroma: sotolon (curry, maple).
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Sugar + vanillatop 3% of all pairsAroma overlaplowMentioned together35,031 recipes
Shared aroma: beta-damascenone (apple, rose).
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Cocoa powder + vanillatop 4% of all pairsAroma overlapmoderateMentioned together2,189 recipes
Shared aroma: sotolon (curry, maple).
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Flour + buttermilktop 5% of all pairsAroma overlapmoderateMentioned together3,667 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Sugar and vanilla share little aroma chemistry, yet 35,031 recipes mention both: they likely work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
The Sunday pairing: one pairing, the chemistry behind it, and how to cook it. No spam, unsubscribe anytime.
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