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 ↓
Foundation for Angel Food
Ingredients
Directions
The book gives no oven temperature. The 300°F (150°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Gather all ingredients before starting.
Sift the flour with the cream of tartar four times.
Make the batter
Beat the egg whites until stiff peaks form.
Gently fold in the sugar.
Gently fold in the flour.
Gently fold in the flavoring; do not overmix, and use a gentle folding motion.
Bake
Preheat the oven to 300 °F (150 °C).
Bake for at least 40 minutes without opening the oven door for the first 15 minutes.
Sift sugar lightly over the top of the batter before baking.
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.
-
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).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + lemontop 17% of all pairsSmell alikemoderateCooked together30,404 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 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 into a foam that traps air, giving the cake its light, airy structure.
- Sugar
- Sweetens the cake and helps stabilize the whipped egg white foam.
- Flour
- Provides the starch and gluten structure that holds the cake's airy crumb once set.
- Cream of tartar
- Adds acidity that stabilizes the egg whites so their foam holds stiff peaks longer.
The step that matters
Fold gently and do not overmix. The air whipped into the egg whites is what makes the cake rise. Vigorous or prolonged mixing knocks out these bubbles, leaving a dense, flat cake.
Swap the lemon
How well each one fits the dish's main ingredients (egg, sugar, flour, cream):
- Raisinfits better
- Vanillafits better
- Figfits about as well
- Lemonthe original
Fit is the average pairing score against egg, sugar, flour, cream. Candidates are from the same food group and used in at least 100 recipes.
“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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