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 Cookies
Ingredients
Directions
The book says “a rather hot 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 the batter
Mix the sifted flour and grated chocolate with the powdered sugar.
Gently fold in the beaten egg whites.
Drop spoonfuls of the mixture onto buttered parchment paper.
Bake and finish
Bake until set, then dampen the back of the paper to easily peel off the cookies.
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.
Photo for illustrative purposes only · Contact us to use it
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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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + chocolatetop 18% of all pairsSmell alikelowCooked together8,994 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
Flour and egg barely smell alike, yet cooks put them together in 106,462 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
- Flour
- Provides structure so the cookies hold their shape while baking.
- Egg whites
- Beaten whites add airy lift and help bind the mixture into set cookies.
- Powdered sugar
- Sweetens the cookies and contributes to their tender, fine texture.
- Chocolate
- Adds chocolate flavor and richness to the cookies.
The step that matters
Gently fold in the beaten egg whites. Folding gently keeps the air beaten into the egg whites, which gives lift and a light texture. Vigorous stirring deflates the foam and can leave the cookies dense and flat.
“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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