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 ↓
Cream Custard
Ingredients
Directions
Prepare the base
Melt the butter in a saucepan.
Whisk together the flour and melted butter until smooth.
Beat the egg yolks.
Add the sugar to the beaten yolks.
Scald the milk in a pot.
Gradually add the flour and butter mixture to the milk.
Stir in the sugar and beaten egg yolks.
Cook and flavor
Cook in a double boiler until thick, stirring frequently.
Add your choice of flavoring 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.
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
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
- Butter
- Enriches the custard and adds richness and a smooth mouthfeel.
- Flour
- Thickens the mixture as it cooks, giving the custard its body.
- Egg yolks
- Thicken the custard as they cook and add richness and a smooth set.
- Sugar
- Adds sweetness and balances the richness of the yolks and butter.
- Sweet milk
- Forms the liquid base that the thickening starches and yolks set into custard.
The step that matters
Cooking the custard until thick. Egg yolks thicken when heated but can curdle or scramble if the heat is too high. A double boiler supplies gentle, even heat, and constant stirring prevents lumps and scorching on the bottom of the pan.
“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.
More cream custard recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
White Cake431 recipes
Pound Cake373 recipes
Orange Bundt Cake349 recipes
Spice Cake344 recipes