Why it works: Flour and egg are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 106,462 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Molasses Sponge Cake
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 400°F (200°C).
Make the batter
In a bowl, mix molasses, flour, eggs, and baking soda until well combined.
Pour the batter into a greased cake pan.
Bake
Bake in the preheated oven until a toothpick inserted in the center 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.
Photo for illustrative purposes only · Contact us to use it
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 + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Molasses + flourtop 16% of all pairsSmell alikemoderateCooked together10,429 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Molasses + eggtop 34% of all pairsSmell alikelowCooked together6,879 recipes
Flour and egg barely smell alike, yet cooks put them together in 106,462 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
- Molasses
- Adds moisture, dark color, and a deep sweet flavor to the cake.
- Flour
- Provides the structure that holds the cake's crumb together as it bakes.
- Eggs
- Bind the batter and set during baking to give the cake its structure.
- Baking soda
- Reacts with the acidic molasses to produce gas that makes the cake rise.
The step that matters
Bake until a toothpick comes out clean. Baking soda and eggs set the batter as it heats, but removing the cake too early leaves a wet, sunken center. A clean toothpick shows the crumb has fully set.
“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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