Why it works: Butter and flour 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 ↓
Lehon Cookies
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 the dough
Preheat your oven to 350°F (175°C).
In a large bowl, cream together the butter and sugar until light and fluffy.
Add the eggs one at a time, mixing well after each addition.
Dissolve the baking soda in the lemon juice and add it to the mixture.
Stir in the grated lemon rind.
Gradually add flour until the dough is of proper consistency for rolling.
Shape and bake
Roll out the dough and cut into desired shapes.
Place on a baking sheet and bake for 10-12 minutes or until lightly golden.
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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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).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Lemon + flourtop 17% of all pairsSmell alikemoderateCooked together30,404 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour 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
- Butter
- Creams with sugar to trap air and provide tenderness and richness in the cookie.
- Sugar
- Sweetens the cookies and creams with butter to create a light, fluffy base.
- Eggs
- Add structure and moisture, binding the dough together.
- Baking soda
- Reacts with the lemon juice to produce gas that lightens the dough and aids browning.
- Lemon juice
- Adds acidity that activates the baking soda and contributes bright lemon flavour.
- Flour
- Provides structure and sets the dough so it can be rolled and cut.
The step that matters
Dissolve the baking soda in the lemon juice. Baking soda needs an acid to react and produce carbon dioxide. Dissolving it fully in the lemon juice before mixing distributes the reaction evenly, so the cookies rise and brown uniformly rather than in patches.
Swap the lemon
How well each one fits the dish's main ingredients (butter, sugar, egg, flour):
- Raisinfits better
- Vanillafits better
- Figfits about as well
- Lemonthe original
Fit is the average pairing score against butter, 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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