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 ↓
Walnut 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. 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.
Prepare the batter
Preheat the oven to 350°F (175°C).
In a bowl, cream together the sugar and butter until light and fluffy.
Add the egg and mix well.
Stir in the milk and lemon extract.
In another bowl, combine the flour and baking powder.
Gradually add the dry ingredients to the wet mixture, mixing until just combined.
Fold in the chopped walnuts.
Bake
Pour the batter into a greased cake pan and bake for 30-35 minutes or until a toothpick comes out clean.
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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Walnut + lemontop 10% of all pairsSmell alikestrongCooked together2,149 recipes
Shared aroma: 2-nonenal (fatty, green).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + walnuttop 12% of all pairsSmell alikemoderateCooked together5,873 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 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
- All-purpose flour
- Provides the main structure that holds the cake together as it sets.
- Butter
- Adds richness and a tender crumb by coating flour and trapping air when creamed.
- Egg
- Binds the batter and helps it set firm during baking.
- Baking powder
- Releases gas in the batter, making the cake rise and become light.
- Sugar
- Sweetens the cake, helps tenderize the crumb, and aids browning.
- Milk
- Adds moisture and loosens the batter so it bakes evenly.
The step that matters
Mixing the dry ingredients into the wet mixture. Mix only until just combined. Overmixing develops too much gluten from the flour, which makes the cake tough and dense rather than tender.
Swap the walnut
How well each one fits the dish's main ingredients (sugar, egg, butter, milk, flour, lemon):
- Almondfits better
- Pistachiofits about as well
- Milletfits about as well
- Walnutthe original
Fit is the average pairing score against sugar, egg, butter, milk, flour, lemon. 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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