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 gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the cake
Preheat the oven to 350°F (175°C).
In a bowl, mix 2 cups sugar, 5 egg yolks, ½ cup cold water, 2½ cups flour, 2 teaspoons baking powder, the juice and grated rind of 1 orange, and a pinch of salt.
Beat the mixture until smooth and pour it into jelly cake tins.
Make the frosting
In another bowl, beat 3 egg whites to a stiff froth.
Gradually add 7 tablespoons powdered sugar, along with the grated rind and juice of 1 orange.
Assemble
Spread the frosting between the layers of the cake once baked.
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).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + orangetop 20% of all pairsSmell alikelowCooked together19,212 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Flour + orangetop 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
- Egg yolks
- Add richness, moisture and tenderness to the cake crumb.
- Egg whites
- Whipped to a foam, they lighten the batter and give the frosting its body.
- All-purpose flour
- Forms the structure that holds the cake's crumb together.
- Baking powder
- Releases gas in the batter, causing the cake to rise.
- Sugar
- Sweetens the cake and helps keep it soft and moist.
- Orange
- Adds bright citrus aroma and acidity to both cake and frosting.
The step that matters
Adding sugar to the beaten egg whites. Adding powdered sugar gradually to stiff egg whites stabilises the foam, keeping it glossy and spreadable. Adding it all at once can collapse the foam and leave the frosting runny.
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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