Why it works: Flour and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Shrewsbury Cakes
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.
Make the dough
Mix flour, powdered sugar, and caraway seeds in a bowl.
Beat the egg whites and yolks separately.
Combine the egg whites with the flour mixture, then add the yolks.
Gradually work in the melted butter until a stiff paste forms.
Shape and bake
Roll out the dough to a thickness slightly thicker than a half-crown coin.
Sprinkle pounded sugar over the rolled dough.
Bake in a preheated oven at 400°F (200°C) for 15 to 20 minutes.
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 + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Flour and butter barely smell alike, yet cooks put them together in 124,287 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
- Flour
- Provides the structure that holds the shortbread together as it bakes.
- Butter
- Adds fat that coats flour particles, giving a tender, crumbly texture and rich flavor.
- Eggs
- Add richness and help bind the dough so it holds together when rolled.
- Powdered sugar
- Sweetens the dough and dissolves easily, giving a fine, smooth crumb.
- Caraway seeds
- Contribute a distinctive aromatic, slightly spicy flavor to the dough.
The step that matters
Gradually work in the melted butter until a stiff paste forms. Melted butter coats the flour and limits gluten development, so the shortbread stays tender. Adding it all at once or overworking the dough can make it greasy or 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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