Why it works: Chocolate and sugar are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 15,404 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓
Chocolate Biscuits
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 350°F (175°C).
Make and shape the batter
Beat the egg whites until stiff peaks form.
Mix the powdered chocolate and white sugar with the beaten egg whites.
Drop spoonfuls of the mixture onto white or wafer paper.
Bake
Bake for 16 minutes.
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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Chocolate + sugartop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Chocolate + eggtop 24% of all pairsSmell alikemoderateCooked together11,448 recipes
Shared aroma: 2-heptenal (green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg whites
- Whipped into stiff peaks, they trap air and give the biscuits their light, crisp structure.
- Powdered chocolate
- Provides the chocolate flavour and dry body that holds the mixture together.
- White sugar
- Sweetens the biscuits and helps them set and crisp as they bake.
The step that matters
Beating the egg whites until stiff peaks form. Egg whites need to be whipped enough to hold air. Under-whipped whites deflate when the chocolate and sugar are folded in, leaving dense, flat biscuits.
“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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