Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. 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).
Cream the butter and sugar together until light and fluffy.
Add the water and mix well.
Gradually add the flour and baking powder, mixing until smooth.
Divide the batter into layers and bake until golden.
Make the frosting and assemble
For the frosting, mix the yolk of one egg with the orange juice and powdered sugar.
Beat the egg whites to a stiff froth and gently fold into the orange mixture.
Spread the frosting between the baked layers.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Orange + coffeetop 13% of all pairsSmell alikemoderateCooked together326 recipes
Shared aroma: 2,3-butanedione (buttery, creamy).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Butter
- Creams with sugar to trap air, giving the cake a light, tender crumb and rich flavour.
- Flour
- Forms the cake's structure once mixed with liquid and leavening.
- Eggs
- Add structure and richness; whites whipped to foam lighten the frosting.
- Baking powder
- Releases gas in the batter, causing the layers to rise in the oven.
- Sugar
- Sweetens the cake and, creamed with butter, helps create a light texture.
- Orange juice
- Adds acidity and bright citrus flavour to the frosting.
The step that matters
Folding in the beaten egg whites. Whites beaten to stiff froth hold air that makes the frosting light. Folding gently keeps that air in; vigorous stirring deflates it and the frosting turns dense and runny.
Swap the orange
How well each one fits the dish's main ingredients (butter, sugar, flour, egg, coffee):
- Vanillafits better
- Raisinfits better
- Figfits better
- Orangethe original
Fit is the average pairing score against butter, sugar, flour, egg, coffee. 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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