Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Lemon Drops
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.
Make the dough
Grate the yellow part of the lemon into a mixing bowl.
Add the sugar and salt, then beat together until well combined.
Mix in the molasses, shortening, and milk.
Stir in the baking soda and flour until just combined.
Bake
Drop rounded teaspoons of dough into buttered tins.
Bake in a preheated oven at 350°F (175°C) until 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 + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Sugar + molassestop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 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).
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
- Eggs (in the method)
- Not in this recipe; omitted.
- Flour
- Provides the structure that sets the dough as the cookies bake.
- Baking soda
- Reacts with the molasses and milk acid to lift and lighten the drops.
- Molasses
- Adds moisture, dark color, and a deep sweetness that promotes browning.
- Shortening
- Adds fat that tenderizes the crumb and gives a soft texture.
- Sugar
- Sweetens the dough and helps it brown at the edges as it bakes.
The step that matters
Stir in the baking soda and flour until just combined. Baking soda needs acid from the sour milk or molasses to react and lift the drops. Overmixing after the flour goes in develops gluten, which can make them tough and dense.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, molasses, butter, milk, flour):
- Raisinfits better
- Vanillafits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against sugar, molasses, butter, milk, 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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