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 ↓
Custakd Souffle
Ingredients
Directions
Make the custard base
Bring 1 cup of milk to a boil.
In a separate bowl, combine flour and butter, then gradually add to the boiling milk.
Beat the egg yolks with sugar, then mix into the cooked mixture and let it cool.
Assemble and bake
Whip the egg whites until stiff, then fold into the cooled mixture.
Pour into a buttered pudding dish and bake.
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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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Eggs
- Whipped whites trap air for lift, and yolks thicken and enrich the custard.
- Flour
- Starch thickens the milk mixture so it holds its shape around the air.
- Butter
- Fat adds richness and a smooth, tender texture to the base.
- Milk
- Forms the liquid base that the flour thickens and the eggs set in.
- Sugar
- Sweetens the custard and helps stabilise the beaten yolks.
The step that matters
Fold in the egg whites. Folding gently keeps the air in the whipped whites; stirring or deflating them causes the soufflé to rise poorly and turn dense.
“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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