Why it works: Flour and almond are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 8,673 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Washington Birthday 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 cake
Cream the butter and sugar together in a bowl.
Sift together the flour, baking soda, and cream of tartar.
Add the dry ingredients and milk alternately to the creamed mixture, mixing thoroughly.
Fold in the stiffly beaten egg whites and almond extract.
Pour the batter into a greased cake pan and bake at 350°F (175°C) for 18 to 20 minutes.
Cut the cake into squares once cooled.
Make the frosting and decorate
For the frosting, combine boiling water and powdered sugar, mixing until the sugar is soft.
Add the 2 eggs to the frosting mixture and mix well.
Decorate the cake with frosting, citron, and cherries in the shape of a bunch.
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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Flour + almondtop 5% of all pairsSmell alikemoderateCooked together8,673 recipes
Shared aroma: isobutyraldehyde (malty, green).
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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 + almondtop 11% of all pairsSmell alikemoderateCooked together9,245 recipes
Shared aroma: 2,3-pentanedione (butter, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Creaming with sugar traps air and adds richness and a tender crumb.
- Flour
- Provides the structure that holds the cake together as it bakes.
- Egg whites
- Whipped and folded in, they trap air that helps the cake rise and stay light.
- Baking soda
- Reacts with the acid in cream of tartar to release gas that lifts the batter.
- Cream of tartar
- Acidic ingredient that stabilizes whipped whites and reacts with baking soda to help rising.
- Milk
- Adds moisture and softens the batter so it bakes evenly.
The step that matters
Folding in the stiffly beaten egg whites. Egg whites hold air only when whipped stiff and not overmixed or deflated. Folding gently keeps the trapped air, which is what lifts the cake's crumb.
“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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