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.
Make the batter
Preheat the oven to 350°F (175°C).
In a bowl, mix sugar, melted butter, and beaten eggs until well combined.
Add flour, baking powder, water, and the juice and grated rind of the oranges. Mix until smooth.
Bake and fill
Pour the batter into prepared cake pans and bake until golden.
Combine the juice and grated rind of 2 oranges with ½ cup sugar and enough water to dissolve 1½ teaspoons of gelatin.
Boil the filling for 10 minutes.
Spread the filling between the cake 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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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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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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
- Eggs
- Bind the batter and give the cake structure and a light, airy crumb.
- Flour
- Forms the cake's structure as its proteins set during baking.
- Baking powder
- Releases gas in the batter so the cake rises in the oven.
- Sugar
- Adds sweetness and helps keep the crumb tender and moist.
- Oranges
- Juice adds moisture and acidity; grated rind adds citrus aroma.
- Gelatin (in the method)
- Sets the orange filling so it holds its shape between the layers.
The step that matters
Dissolve the gelatin fully in the orange filling. Gelatin only sets when it is completely dissolved and then cools, so any undissolved granules will leave the filling weak or grainy. Boiling the filling also concentrates the sugar and juice, changing how it thickens.
Swap the orange
How well each one fits the dish's main ingredients (sugar, butter, egg, flour):
- Raisinfits better
- Vanillafits better
- Figfits better
- Orangethe original
Fit is the average pairing score against sugar, butter, 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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