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 ↓
Brown Sauce
Ingredients
Directions
Make the custard
In a saucepan, combine the egg yolks and milk.
Add the butter and heat gently, stirring constantly until it thickens like custard.
Cool and flavor
Remove from heat and let it cool.
Once cool, add lemon juice to taste.
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.
Photo for illustrative purposes only · Contact us to use it
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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Milk + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Egg + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Egg yolks
- Thicken the milk into a custard as they gently set with heat, giving the sauce body.
- Milk
- Forms the liquid base that the egg yolks thicken into a smooth sauce.
- Butter
- Adds richness and a smooth, silky mouthfeel to the sauce.
- Lemon
- Adds bright acidity and fresh aroma to balance the richness of the sauce.
The step that matters
Heat gently while stirring constantly. Egg yolk proteins set as they warm. Too much heat or no stirring can scramble the yolks into lumps instead of a smooth custard-like sauce.
Swap the lemon
How well each one fits the dish's main ingredients (egg, milk, butter):
- Vanillafits better
- Coconutfits better
- Figfits about as well
- Lemonthe original
Fit is the average pairing score against egg, milk, 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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