Why it works: Sugar and cream 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 ↓
Angel Cake
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).
Sift and measure the sugar and flour, then set aside.
In a bowl, whip the egg whites with a pinch of salt until foamy.
Add the cream of tartar and continue whipping until very stiff.
Make the batter
Gradually fold in the sugar using a spoon, then add flavoring and fold in.
Gently fold in the flour until just combined.
Pour the batter into an ungreased tube pan and bake for 25-30 minutes.
Watch for the cake to begin shrinking from the sides of the pan.
Bake and cool
Once it shrinks, remove it from the oven and invert the pan immediately.
Let it hang until completely cool, then remove from the pan and frost.
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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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).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + creamtop 20% of all pairsSmell alikemoderateCooked together30,481 recipes
Shared aroma: acetaldehyde (pungent, ethereal).
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Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 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 to foam, they trap air and form the cake's light, airy structure.
- Sugar
- Sweetens the cake and, folded into the whites, helps stabilize the foam.
- All-purpose flour
- Provides the protein-based structure that sets the cake's crumb as it bakes.
- Cream of tartar
- Acidifies the whites, stabilizing the foam so it whips stiffer and holds its volume.
The step that matters
Inverting the pan immediately after baking. Angel cake's foam structure is delicate and sets while hot; hanging the pan upside down while it cools keeps the cake from collapsing and shrinking as steam escapes.
“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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