Why it works: Sugar and flour are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 92,116 recipes. Both carry phenylacetaldehyde, which smells hawthorne, honey. The science ↓
Orange Cake
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Make the batter
Beat the eggs, sugar, orange rind, and juice together for five minutes.
Beat over boiling water for about eight minutes until light and frothy.
Sift the flour and gently stir it into the egg mixture.
Pour into a greased and lined cake tin.
Bake and finish
Bake for about 45 minutes in a moderate oven at 350°F (175°C).
Ice with glace icing using orange juice instead of water.
Optionally, add one or two layers of butter icing flavored with grated orange rind in the middle.
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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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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Sugar + orangetop 20% of all pairsSmell alikelowCooked together19,212 recipes
Shared aroma: beta-damascenone (apple, rose).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Orange + flourtop 21% of all pairsSmell alikemoderateCooked together6,821 recipes
Shared aroma: isobutyraldehyde (malty, 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
- Eggs
- Trap air when beaten, giving the cake its light, risen structure once set.
- Castor sugar
- Sweetens the cake and helps stabilise the beaten eggs, adding softness to the crumb.
- Flour
- Sets during baking to form the cake's structure.
- Orange juice
- Adds moisture and bright citrus acidity to the batter and icing.
- Orange rind
- Contributes concentrated orange aroma and flavour from the peel's oils.
The step that matters
Beat over boiling water until light and frothy. Beating the eggs and sugar until thick and frothy traps air bubbles that expand in the oven. Under-beating leaves a dense, flat cake, so the mixture should be checked for lightness before the flour is folded in.
Swap the orange
How well each one fits the dish's main ingredients (sugar, egg, flour):
- Raisinfits better
- Vanillafits better
- Lemonfits better
- Orangethe original
Fit is the average pairing score against sugar, egg, flour. 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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