Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Tri-colored 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 batter
Preheat the oven to 350°F (175°C).
In a bowl, cream together the white sugar and butter until light and fluffy.
Add the flour, sweet milk, baking soda, and cream of tartar, and mix well.
In a separate bowl, beat the egg whites until stiff peaks form, then fold them into the batter.
Bake the layers
Divide the batter into two equal portions and pour them into two thin square cake pans.
For the red layer, use half the original quantity of ingredients, substituting red sugar sand for white sugar, and bake in one cake pan.
For the yellow layer, use the same quantity as the original, incorporating the yolks of the eggs, and bake in two cake pans.
Assemble and finish
Once baked, spread jelly on the cakes and layer them: place the pink cake in the center, the white cakes on each side, and the yellow cakes on top and bottom.
Frost or sprinkle with sugar as desired.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter 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 (whites)
- Whipped into stiff peaks, they trap air that lifts and lightens the cake.
- All-purpose flour
- Provides the structure that holds the cake together as it bakes.
- Butter
- Adds fat that tenderizes the crumb and carries flavor.
- White sugar
- Sweetens the batter and, creamed with butter, helps create a light, tender texture.
- Baking soda
- Reacts with the acid in the batter to produce gas that makes the cake rise.
- Cream of tartar
- An acid that stabilizes the whipped whites and works with baking soda to aid rising.
The step that matters
Folding the whipped egg whites into the batter. Whipped whites hold the air that lightens the cake. Folding gently keeps that air in, while stirring hard would deflate the batter and leave a dense layer.
“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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