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 Cake
Ingredients
Directions
The book says “a slow oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the batter
Sift the flour and sugar together six times.
Add salt to the egg whites and beat until very stiff and dry.
Fold in the sifted sugar until dissolved.
Add the almond flavoring and gently fold in the sifted flour.
Bake
Pour the mixture into a cake tin and thump the tin four times on the table, turning it each time.
Bake in a 400°F (200°C) oven.
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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Flour + sugartop 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 beaten, creating the light, airy structure of the cake.
- Sugar
- Sweetens the cake and dissolves into the foam, helping it stay stable.
- Flour
- Sets during baking to give the cake its firm, sliceable structure.
- Cream of tartar
- Acid that strengthens the egg white foam so it holds its volume.
- Almond flavoring
- Adds a distinct aroma and flavor to the sweet, mild cake.
The step that matters
Fold in the sifted flour gently. Egg white foam holds its air only while it is intact. Vigorous stirring deflates it, so the cake will bake flat and dense instead of light.
“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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