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 ↓
Boston Cake
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
Cream together the sugar and butter.
Break in one egg and beat well.
Sift the flour three times, adding the salt, baking powder, and corn starch the last time.
Add a little of the flour mixture to the creamed mixture.
Stir in the second egg and the milk.
Gradually add the remaining flour and the vanilla.
Bake and finish
Bake in a moderate oven at 350°F (175°C) in a loaf or two layers.
If using layers, frost with chocolate frosting and cream filling.
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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Corn + vanillatop 9% of all pairsSmell alikemoderateCooked together1,943 recipes
Shared aroma: ethyl cinnamate (sweet, balsamic).
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Corn + milktop 10% of all pairsSmell alikemoderateCooked together6,955 recipes
Shared aroma: hexanal (green, grassy).
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
- Creams with the sugar to trap air and give the cake a tender, rich crumb.
- Eggs
- Bind the batter and add structure and richness as the cake sets in the oven.
- Pastry flour
- Provides the main structure of the cake while staying tender because of its lower protein.
- Corn starch
- Softens the flour's gluten, producing a fine, delicate crumb.
- Baking powder
- Releases gas in the oven so the cake rises and becomes light.
- Milk
- Adds moisture and hydrates the flour so the batter flows smoothly.
The step that matters
Adding the flour mixture gradually. Adding flour in stages after creaming and egg addition keeps the batter smooth and emulsified. Overmixing once the flour is in develops gluten, which can make the cake tough.
“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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