Why it works: Flour and cinnamon are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 17,341 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Shrewsbury 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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare
Preheat oven to 350°F (175°C).
In a large bowl, cream together softened butter and sugar until light and fluffy.
Add eggs one at a time, mixing well after each addition.
Gradually add flour, mixing until just combined; if dough is too wet, add a little more flour.
Stir in cinnamon and mace to taste.
Bake
Pour batter into a greased baking pan and smooth the top.
Bake for about 30‑40 minutes or 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.
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 + cinnamontop 9% of all pairsSmell alikemoderateCooked together17,341 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Cinnamon + macetop 10% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: methyleugenol (clove, spice).
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Sugar + cinnamontop 10% of all pairsSmell alikelowCooked together30,779 recipes
Shared aroma: guaiacol (smoky, sweet).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
Sugar and cinnamon barely smell alike, yet cooks put them together in 30,779 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 sugar to trap air, giving the cake a tender, rich crumb.
- Sugar
- Sweetens the cake and, creamed with butter, helps create a light texture.
- Eggs
- Add structure and richness, binding the batter as the cake sets.
- Flour
- Provides the main structure that sets as the cake bakes.
The step that matters
Adding the flour. Mixing flour in gently and only until combined keeps gluten development low, so the cake stays tender rather than tough. Overmixing or too much flour can make the dough dry or dense.
Swap the mace
How well each one fits the dish's main ingredients (egg, butter, sugar, flour, cinnamon):
- Nutmegfits better
- Cardamomfits better
- Allspicefits better
- Macethe original
Fit is the average pairing score against egg, butter, sugar, flour, cinnamon. 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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