Why it works: Milk and butter 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 Wafers
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 400°F (200°C).
Make and spread the batter
In a bowl, mix together the sugar, milk, butter, and flour until smooth.
Spread the mixture thinly on well-buttered baking sheets using a knife blade.
Sprinkle the finely chopped peanuts evenly over the top.
Bake and cut
Bake until slightly browned.
Remove from the oven and cut into narrow strips while still warm.
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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Milk + buttertop 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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Milk + peanuttop 14% of all pairsSmell alikemoderateCooked together1,048 recipes
Shared aroma: 2-undecenal (sweet).
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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
- Flour
- Provides the structure that holds the thin wafer together as it bakes.
- Butter
- Adds fat for tenderness and helps the wafers brown in the oven.
- Sugar
- Adds sweetness and promotes browning on the surface of the wafers.
- Milk
- Adds moisture so the batter spreads smoothly and bakes evenly.
- Peanuts
- Provide crunch and a nutty flavour on the wafer's top surface.
The step that matters
Bake until slightly browned. Thin batter spread over the sheets can go from golden to burnt quickly, since sugar browns and darkens fast at high heat. Checking early keeps the wafers crisp rather than bitter.
Swap the peanut
How well each one fits the dish's main ingredients (sugar, milk, butter, flour):
- Almondfits better
- Chestnutfits better
- Pistachiofits better
- Peanutthe original
Fit is the average pairing score against sugar, milk, 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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