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 ↓
Walnut Pie
Ingredients
Directions
The book gives no oven temperature. The 300°F (150°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the filling
Preheat the oven to 300°F (150°C).
Scald the milk in a saucepan.
In a bowl, combine the scalded milk, 2 egg yolks, sugar, and butter.
Chop and sift the walnuts, then add to the mixture.
Bake and top
Pour the filling into a pie crust and bake slowly until set.
Once cool, beat the egg white and add a little sugar.
Spread the egg white mixture over the pie and sprinkle with walnut meat.
Brown the topping in the oven before serving.
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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Walnut + meattop 13% of all pairsSmell alikemoderateCooked together1,035 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Walnut + buttertop 15% of all pairsSmell alikemoderateCooked together6,832 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Milk + walnuttop 16% of all pairsSmell alikemoderateCooked together3,236 recipes
Shared aroma: 1-hexanal (fruit).
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Meat + buttertop 16% of all pairsSmell alikemoderateCooked together7,594 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Milk
- Forms the liquid base that the egg yolks set into a custard.
- Eggs
- Yolks thicken the filling as it sets, and whipped whites form the light topping.
- Sugar
- Sweetens the filling and helps the whipped egg whites hold their shape.
- Butter
- Adds fat for richness and a smooth, tender filling.
- Walnuts
- Add nutty flavour and texture to both the filling and the topping.
The step that matters
Bake the filling slowly until set. Egg proteins set gently at moderate heat. Too much heat can make the custard curdle, weep, or turn rubbery, so check for a just-set centre rather than a hard one.
Swap the walnut
How well each one fits the dish's main ingredients (milk, egg, sugar, meat, butter):
- Pecansfits better
- Almondfits about as well
- Walnutthe original
- Cocoafits about as well
Fit is the average pairing score against milk, egg, sugar, meat, butter. 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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