Why it works: Walnut and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 5,873 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Walnut Cookies
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 your oven to 400°F (200°C).
Make the dough
In a bowl, combine the pounded walnut meats and fine sugar.
Add the well beaten egg and milk, mixing until smooth.
Gradually add flour until the dough is thin enough to roll.
Stir in the baking powder.
Shape and bake
Roll out the dough and cut into desired shapes.
Place on a baking sheet and bake 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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Walnut + flourtop 12% of all pairsSmell alikemoderateCooked together5,873 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Walnut + meattop 13% of all pairsSmell alikemoderateCooked together1,035 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
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).
Milk and flour barely smell alike, yet cooks put them together in 78,219 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
- Walnut meats
- Provide the main body, nutty flavor and fat that give the cookies their character.
- Egg
- Binds the mixture together and adds structure as the cookies set.
- Baking powder
- Releases gas during baking to lighten the dough and help it rise.
- Sugar
- Adds sweetness and helps the cookies brown as they bake.
- Flour
- Gives the dough enough body to roll thin and hold its cut shapes.
The step that matters
Gradually add flour until the dough is thin enough to roll. Adding flour in small amounts lets you stop once the dough is rollable. Too much flour makes the cookies dry and tough, while too little leaves the dough sticky and hard to shape.
Swap the walnut
How well each one fits the dish's main ingredients (meat, sugar, egg, milk, flour):
- Almondfits better
- Chestnutfits about as well
- Walnutthe original
- Pistachiofits about as well
Fit is the average pairing score against meat, sugar, egg, 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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