Why it works: Cream and sugar are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. The science ↓
Angels' Food
Ingredients
Directions
Whip the egg whites
Beat the egg whites until half beaten.
Add the cream of tartar and continue beating until stiff.
Gradually add the powdered sugar and beat again.
Mix and bake
Mix in the lemon juice and flour until combined.
Pour the batter into a loaf pan and bake.
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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Cream + sugartop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Lemon + flourtop 17% of all pairsSmell alikemoderateCooked together30,404 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
Egg and flour 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
- Egg whites
- Whipped into a foam that gives the cake its light, airy rise.
- Cream of tartar
- Stabilizes the whipped egg whites so they hold their volume.
- Powdered sugar
- Sweetens the cake and dissolves into the foam for a fine, tender crumb.
- Lemon juice
- Adds acidity that brightens flavor and helps keep the foam stable.
- Flour
- Provides the structure that lets the cake set and hold its shape.
The step that matters
Beating the egg whites until stiff. Whites underbeaten won't trap enough air to rise, while overbeaten whites turn dry and grainy and collapse in the oven. Stiff peaks that hold their shape are the goal.
Swap the lemon
How well each one fits the dish's main ingredients (egg, cream, sugar, flour):
- Raisinfits better
- Vanillafits better
- Figfits about as well
- Lemonthe original
Fit is the average pairing score against egg, cream, sugar, flour. 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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