Why it works: Sugar and vanilla are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 35,032 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓
Angel Food Cake
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Sift the flour three times and set aside.
Roll and sift the sugar once and set aside.
Preheat the oven to 400°F (200°C).
Make the batter
In a mixing bowl, beat the egg whites until foamy, then add the salt.
When the eggs are half beaten, add the cream of tartar and vanilla extract.
Continue beating the egg whites until they are fully beaten but not too stiff.
Sift in the sugar gradually while beating continuously.
Fold in the flour gently with a few strokes until just combined.
Pour the batter into an ungreased angel food cake pan.
Bake
Place the pan on a rack about three inches above the bottom of the oven.
Light both burners for about two minutes before placing the cake in the oven.
Immediately turn off the front burner and reduce the back burner to half capacity.
Bake the cake for one hour.
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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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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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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Flour + vanillatop 12% of all pairsSmell alikemoderateCooked together19,241 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Cream + vanillatop 15% of all pairsSmell alikelowCooked together12,301 recipes
Shared aroma: 2-nonanone (fruity, floral).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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
- Trapped air in the foamy structure gives the cake its light, airy rise and body.
- Granulated sugar
- Sweetens the cake and stabilizes the beaten egg white foam, keeping it glossy and firm.
- All-purpose flour
- Provides the light structure that holds the risen foam together as the cake sets.
- Cream of tartar
- Acidifies the egg whites, helping them whip to a more stable foam that resists collapsing.
The step that matters
Fold in the flour gently. Folding with a few light strokes keeps the air bubbles in the beaten egg whites intact. Overmixing knocks out the air, so the cake bakes up dense instead of light and tall.
Swap the vanilla
The recipe marks vanilla as optional. How well each one fits the dish's main ingredients (flour, sugar, egg, cream):
- Raisinfits about as well
- Vanillathe original
- Figfits less well
- Strawberryfits less well
Fit is the average pairing score against flour, sugar, egg, cream. 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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