Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓
Watermelon Cake, to Make
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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Make the batter
Preheat the oven to 350°F (175°C).
Cream together the sugar and butter until light and fluffy.
Add the eggs one at a time, mixing well after each addition.
Stir in the milk and vanilla extract.
In a separate bowl, combine the flour and baking powder.
Gradually add the dry ingredients to the wet mixture, mixing until just combined.
Color and bake
Divide the batter into two bowls.
Color one bowl red and the other green using food coloring.
Pour the red batter into a greased cake pan.
Layer the green batter on top.
Bake for 30-35 minutes or until a toothpick inserted in the center comes out clean.
Let cool 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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Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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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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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + vanillatop 12% of all pairsSmell alikemoderateCooked together19,241 recipes
Shared aroma: isobutyraldehyde (malty, green).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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
- Creamed with sugar to trap air, giving a light, tender crumb and rich flavor.
- Eggs
- Bind the batter and add structure as they set during baking.
- Flour
- Forms the cake's structure once its proteins set in the oven.
- Baking powder
- Releases gas during baking so the cake rises and becomes airy.
- Sugar
- Sweetens the cake and helps create a soft, tender texture when creamed.
- Milk
- Adds moisture and liquid that hydrates the flour and dissolves the dry ingredients.
The step that matters
Gradually add the dry ingredients to the wet mixture. Mixing only until just combined keeps gluten development limited, so the cake stays tender rather than tough and dense.
Swap the vanilla
How well each one fits the dish's main ingredients (sugar, butter, egg, milk, flour):
- Vanillathe original
- Raisinfits about as well
- Figfits less well
- Coconutfits less well
Fit is the average pairing score against sugar, butter, egg, milk, 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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