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 moderate oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Make the batter
Sift the sugar and flour together three times with the cream of tartar.
Beat the egg whites very lightly and fold them into the sifted mixture.
Add the almond extract and mix gently.
Bake and cool
Pour the batter into an unbuttered pan with three standards at the rim.
Bake in a slow oven at 300°F (150°C) for 40 minutes.
Turn the pan upside down immediately after removing it from the oven to cool.
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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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
- Egg whites
- Trap air when lightly beaten, giving the cake its light, airy structure as it sets.
- Fine granulated sugar
- Sweetens the cake and helps stabilise the whipped egg white foam.
- Flour
- Provides the starch that sets the cake's structure once baked.
- Cream of tartar
- Acidifies the egg whites, helping foam stay stable and hold its volume.
The step that matters
Turn the pan upside down immediately after baking. The cake's foam structure is still setting while hot. Inverting it while hot lets gravity hold the cake stretched, so it cools tall without collapsing.
“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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