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. Add the flour, sweet milk, baking soda, cream of tartar, and egg whites; mix well.
Bake the layers
Divide the batter into two thin square cake pans and bake until golden.
For the pink cake, use half the quantity of the same ingredients, substituting red sugar sand for white sugar, and bake in one cake pan.
For the yellow cakes, use the same quantity as the first, but with the yolks of the eggs, and bake in two cake pans.
Assemble and finish
Spread jelly between the layers, placing the pink cake in the center, the white cakes on each side, and the yellow cakes on the top and bottom.
Frost or sprinkle with sugar before serving.
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 give structure and lift to the batter, while yolks add richness and colour to the yellow layers.
- Butter
- Creamed with sugar, it adds fat for a tender crumb and rich flavour.
- Flour
- Forms the structure of the cake as its proteins set during baking.
- Baking soda
- Reacts with the acidic cream of tartar to produce gas that makes the layers rise.
- Cream of tartar
- Acidifies the batter so it reacts with baking soda, helping the cake rise and stay tender.
- White sugar
- Sweetens the cake and, when creamed with butter, helps trap air for a lighter texture.
The step that matters
Dividing the batter into thin layers and baking until golden. Thin layers bake quickly and evenly, so they need watching to avoid drying out. Baking until golden signals browning, which adds flavour, but over-baking makes the layers dry and crumbly.
“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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