Why it works: Sugar and syrup match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 5,842 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Burnt Sugar Cake
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Make the batter
Beat together sugar, butter, and egg yolks.
Add water and flour.
Beat for 2 minutes.
Mix in burnt sugar syrup, remaining flour, baking powder, and vanilla.
Fold in beaten egg whites.
Bake the layers
Bake in three layers at 350°F (175°C).
Make the syrup and finish
Boil sugar and water until it spins a thread.
Pour over beaten egg whites.
Flavor with vanilla.
Burn sugar in a saucepan until brown.
Add hot water.
Cook until syrupy.
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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Sugar + syruptop 6% of all pairsSmell alikestrongCooked together5,842 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Syrup + vanillatop 12% of all pairsSmell alikelowCooked together1,855 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Flour + vanillatop 12% of all pairsSmell alikemoderateCooked together19,241 recipes
Shared aroma: isobutyraldehyde (malty, green).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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
- All-purpose flour
- Provides the starch and gluten network that gives the cake its structure.
- Egg whites
- Whipped into foam, they trap air that lifts and lightens the batter as it bakes.
- Baking powder
- Releases gas during baking, causing the batter to rise.
- Butter
- Adds fat that tenderizes the crumb and carries flavor.
- Sugar
- Sweetens the cake and helps brown the crust and keep it moist.
- Burnt sugar syrup
- Adds the deep, caramel-like flavor and color that defines the cake.
The step that matters
Folding in the beaten egg whites. Egg whites hold air bubbles that give the cake lift. Stirring vigorously or overmixing knocks that air out, leaving a denser, flatter cake. Fold gently with a spatula until just combined.
Swap the vanilla
How well each one fits the dish's main ingredients (sugar, butter, egg, flour, syrup):
- Raisinfits about as well
- Vanillathe original
- Figfits less well
- Lemonfits less well
Fit is the average pairing score against sugar, butter, egg, flour, syrup. 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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