Why it works: Sugar and flour are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 92,116 recipes. Both carry phenylacetaldehyde, which smells hawthorne, honey. The science ↓
Toronto Pie
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.
Prepare
Preheat the oven to 350°F (175°C).
In a bowl, mix sugar, eggs, flour, and baking powder until smooth.
Bake
Divide the batter into layers and bake until golden, similar to a jelly cake.
Assemble
Once cooled, spread raspberry jam between the layers.
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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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + raspberrytop 20% of all pairsSmell alikemoderateCooked together1,262 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sugar + raspberrytop 21% of all pairsSmell alikelowCooked together3,101 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
Egg and flour 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
- Eggs
- Bind the batter and add structure and moisture to the layers.
- Flour
- Forms the structure that holds the layers together.
- Sugar
- Adds sweetness and helps the layers brown and stay tender.
- Baking powder
- Releases gas during baking so the layers rise and stay light.
- Raspberry jam
- Adds sweetness, fruity aroma and moisture between the layers.
The step that matters
Let the layers cool before spreading the jam. Warm layers make the jam runny, so it soaks into the sponge and can make the cake soggy and slide. Cooling lets the jam stay as a distinct filling.
Swap the raspberry
How well each one fits the dish's main ingredients (sugar, egg, flour):
- Raisinfits better
- Vanillafits better
- Lemonfits better
- Raspberrythe original
Fit is the average pairing score against sugar, egg, flour. 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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