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 ↓
Lemon Snaps
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Preheat the oven to 400°F (200°C).
Make the dough
In a bowl, cream together the sugar and butter.
Dissolve the baking soda in hot water and add to the mixture.
Gradually add flour until the dough is thin enough to roll.
Flavor the dough with lemon extract.
Shape and bake
Roll out the dough and cut into desired shapes.
Bake in the preheated oven 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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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Flour + lemontop 17% of all pairsSmell alikemoderateCooked together30,404 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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
- Sugar
- Sweetens the dough and helps it crisp and brown as it bakes.
- Butter
- Adds fat and richness, creaming with sugar to give the cookies tenderness.
- Baking soda
- Reacts with the dough to help it spread and lighten as it bakes.
- Flour
- Provides the structure that lets the dough roll thin and hold its shapes.
The step that matters
Gradually add flour until the dough is thin enough to roll. Adding flour in stages lets you judge the dough's consistency. Too much flour makes the cookies dry and tough, while too little leaves the dough sticky and hard to roll and cut cleanly.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, butter, flour):
- Raisinfits better
- Vanillafits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against sugar, butter, 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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