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 Pie
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Make the batter
Rub the sugar and butter together until creamy.
Beat the eggs separately.
Stir in the flour, cream of tartar, and baking soda dissolved in milk.
Divide the mixture between two well-buttered shallow tin plates.
Bake and assemble
Bake in a moderate oven at 350°F (175°C) until done.
Once baked, place preserves or jelly between the cakes.
Sprinkle powdered sugar over the top cake 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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Butter + flourtop 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).
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
- Beaten eggs add structure and lift to the sponge as they set in the oven.
- Butter
- Creaming butter with sugar traps air that helps give the cake a tender crumb.
- Flour
- Flour forms the cake's main structure once it sets during baking.
- Cream of tartar
- Cream of tartar is an acid that reacts with baking soda to help the cakes rise.
- Baking soda
- Baking soda, dissolved in milk and activated by the acid, produces gas that leavens the cakes.
- Preserves or jelly
- Preserves add sweetness and fruity moisture between the cake layers.
The step that matters
Dividing the batter evenly between the two buttered tins. Even layers bake at the same rate and stack neatly. Well-buttered tins help the thin cakes release cleanly without tearing.
“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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