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 ↓
Peanut 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 the oven to 350°F (175°C).
In a bowl, cream together the butter and sugar until light and fluffy.
Beat in the eggs one at a time.
Mix in the flour, baking powder, and salt until combined.
Fold in the chopped peanuts, lemon juice, and milk.
Bake
Drop spoonfuls of the dough onto a baking sheet.
Bake for 10-12 minutes or 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).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Peanut + milktop 14% of all pairsSmell alikemoderateCooked together1,048 recipes
Shared aroma: 2-undecenal (sweet).
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Flour + milktop 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
- Butter
- Creamed with sugar to trap air, giving the cookies a light, tender texture and richness.
- Sugar
- Creamed with butter to add sweetness and help create a light, fluffy base.
- Eggs
- Bind the dough and add structure and moisture as they are beaten in.
- Flour
- Provides the structure that holds the cookies together as they bake.
- Baking powder
- Releases gas during baking so the cookies rise and turn out lighter.
- Peanuts
- Add nutty flavour and crunch throughout the cookies.
The step that matters
Beating in the eggs one at a time. Adding each egg fully before the next keeps the creamed butter and sugar from separating or curdling, so the batter stays smooth and evenly textured.
Swap the peanut
How well each one fits the dish's main ingredients (butter, sugar, egg, flour, lemon, milk):
- Almondfits better
- Pistachiofits better
- Milletfits better
- Peanutthe original
Fit is the average pairing score against butter, sugar, egg, flour, lemon, milk. 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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