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 very slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Sift the pastry flour four times.
Sift the sugar once.
Measure and combine the sifted flour and sugar.
Make the batter
Beat the egg whites until half stiff.
Add the cream of tartar to the egg whites.
Continue beating until stiff peaks form.
Gently fold in the flour and sugar mixture.
Add the almond flavoring.
Bake
Place a pie pan of water on the lower rack.
Bake in an ungreased Van Dusen pan for 1 hour at 300°F (150°C).
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).
-
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
- Trap air in a foam that sets as the cake bakes, giving its light, airy structure.
- Sugar
- Sweetens the cake and helps stabilize the beaten egg white foam.
- Pastry flour
- Provides a light, delicate structure that holds the risen foam once baked.
- Cream of tartar
- Adds acidity that stabilizes the egg white foam and keeps it from collapsing.
The step that matters
Gently fold in the flour and sugar mixture. Folding gently keeps the air bubbles in the beaten egg whites intact. Stirring or deflating the foam makes the cake dense and less airy after baking.
“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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