Why it works: Flour and almond are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 8,673 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Angel Cake
Ingredients
Directions
The book says “a cool oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat your oven to 300°F (150°C).
Make the batter
In a mixing bowl, add a pinch of salt to the egg whites and beat for one minute.
Sift in the cream of tartar and continue beating until stiff peaks form.
Sift the sugar and gradually beat it into the egg whites.
Add the almond extract.
Sift the flour five times before measuring, then gently fold it into the egg mixture quickly and lightly.
Bake and cool
Line the pan with parchment paper, do not grease it.
Pour the batter into the pan, cover it, and place it in the preheated oven.
After 30 minutes, remove the cover and bake for an additional 30 minutes.
Once baked, invert the pan to cool, ensuring air can circulate underneath.
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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Flour + almondtop 5% of all pairsSmell alikemoderateCooked together8,673 recipes
Shared aroma: isobutyraldehyde (malty, green).
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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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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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Cream + almondtop 16% of all pairsSmell alikemoderateCooked together5,130 recipes
Shared aroma: 2-heptanol (bitter, floral).
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 stiff peaks, they create the airy structure that lifts the cake.
- Sugar
- Sweetens the cake and stabilizes the whipped egg white foam.
- Cream of tartar
- Stabilizes the egg white foam, helping it hold its peaks during mixing and baking.
- All-purpose flour
- Provides the light structure that sets the cake's crumb as it bakes.
- Almond extract
- Adds aroma and flavor to the cake.
The step that matters
Folding in the flour. Overmixing or deflating the whipped egg whites releases the air that makes the cake rise. Folding the sifted flour gently and quickly keeps the foam intact and the crumb tender.
“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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