Why it works: Milk and flour are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Filling for Cream Pies
enough for four piesIngredients
Directions
Prepare
Heat a pot of water and place a bowl with the milk in it to create a double boiler.
In a separate bowl, beat together the sugar, flour, and eggs until light and smooth.
Make the filling
Once the milk boils, stir in the mixture of sugar, flour, and eggs along with the salt.
Cook for 20 minutes, stirring often.
Add lemon flavoring to taste.
Finish
This filling is enough for four pies.
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 + 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).
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Milk + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + lemontop 17% of all pairsSmell alikemoderateCooked together30,404 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
- Milk
- Forms the liquid base that gently thickens and gives the filling its creamy body.
- Sugar
- Adds sweetness and softens the texture of the set filling.
- Flour
- Its starch swells when heated, thickening the filling and giving it structure.
- Eggs
- Their proteins set with gentle heat, adding firmness and richness to the custard.
The step that matters
Cook for 20 minutes, stirring often. Constant stirring over the double boiler spreads heat evenly, so the flour starch thickens smoothly without lumps or scorching, and the eggs set without curdling.
Swap the lemon
How well each one fits the dish's main ingredients (milk, sugar, flour, egg):
- Vanillafits better
- Raisinfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against milk, sugar, flour, egg. 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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