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 ↓
Velvet Cake
Ingredients
Directions
Make the batter
Cream the butter in a mixing bowl.
Gradually add the sugar and mix until well combined.
Add the beaten egg yolks and cold water, mixing thoroughly.
In a separate bowl, sift together the flour, corn starch, and baking powder.
Fold the dry ingredients into the wet mixture along with the beaten egg whites.
Bake and finish
Pour the batter into a prepared cake pan and bake until done.
Cover with opera caramel frosting 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 + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + corntop 13% of all pairsSmell alikemoderateCooked together6,165 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + corntop 14% of all pairsSmell alikemoderateCooked together7,345 recipes
Shared aroma: 2,3-pentanedione (butter, sweet).
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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).
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
- Adds richness and tenderness to the crumb through fat.
- Sugar
- Sweetens the cake and helps keep it soft and moist.
- Egg yolks
- Add richness, emulsify the batter and help set the structure.
- Flour
- Provides the main structure as its proteins set during baking.
- Egg whites
- Whipped air lightens the batter and helps the cake rise.
- Baking powder
- Releases gas during baking so the cake rises and becomes light.
The step that matters
Folding in the egg whites. Whipped egg whites hold air that gives the cake its lift. Stirring vigorously or overmixing deflates them, leaving a dense, flat cake. Fold gently just until no white streaks remain.
“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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