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 ↓
Washington 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.
Make the batter
Preheat the oven to 350°F (175°C).
In a large bowl, cream together the sugar and butter.
Add the eggs one at a time, mixing well after each addition.
Stir in the sweet milk.
In another bowl, combine the flour and baking powder.
Gradually add the dry mixture to the wet mixture.
Make the filling
For the filling, boil the grated apples, white sugar, and lemon juice for about 2 minutes, then let the filling cool.
Assemble and bake
Spread the cooled filling on the cake.
Pour the batter into a greased cake pan.
Bake until golden.
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).
-
Milk + appletop 11% of all pairsSmell alikemoderateCooked together4,104 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Apple + lemontop 14% of all pairsSmell alikemoderateCooked together7,551 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Flour + milktop 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
- Eggs
- Add structure and richness, and help the batter set as it bakes.
- Flour
- Forms the structure that holds the cake together as it bakes.
- Butter
- Adds fat for a tender crumb and rich flavour.
- Baking powder
- Releases gas in the batter, helping the cake rise.
- Sugar
- Adds sweetness and helps keep the crumb tender and browned.
- Tart apples
- Provide moisture and tartness to the filling.
The step that matters
Gradually add the dry mixture to the wet mixture. Mixing gently and only until the flour is combined keeps gluten from overdeveloping, which would make the cake tough and dense rather than light.
Swap the apple
How well each one fits the dish's main ingredients (sugar, butter, flour, egg, milk, lemon):
- Vanillafits better
- Raisinfits better
- Figfits better
- Applethe original
Fit is the average pairing score against sugar, butter, flour, egg, milk, 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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