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 Food
Ingredients
Directions
The book says “a slack oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the batter
Sift the cream of tartar with the flour several times.
Whip the egg whites until firm enough to hold an egg.
Add the sugar and beat for a few more seconds.
Stir in the flavoring and fold in the flour gradually without beating.
Bake and cool
Pour the batter into an ungreased mold designed for angel food cake.
Bake in a 300°F (150°C) oven for 25 to 30 minutes.
Once baked, invert the mold to cool, allowing air to circulate underneath.
If the cake does not release easily, run a thin knife around the edges.
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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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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Flour + eggtop 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).
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
- Whites of 11 eggs
- Whipped into a foam that traps air and provides the cake's main structure.
- Granulated sugar
- Stabilizes the whipped whites and adds sweetness and a tender texture.
- Flour
- Provides light structure once folded in, setting as the cake bakes.
- Cream of tartar
- Acidifies the egg whites, helping them whip to a stable, firm foam.
The step that matters
Fold in the flour gradually without beating. Beating after the flour is added develops gluten and deflates the whipped egg white foam, which leads to a dense, tough cake instead of a light, airy one.
“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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