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 ↓
A More Economical Method of Making a Pint of White Sauce
Ingredients
Directions
Make the sauce base
Combine broth, milk, onion, and mace in a stew-pan. Bring to a boil for 10 minutes.
Rub flour and butter together in a bowl until smooth.
Add the flour-butter mixture to the stew-pan and stir until it boils.
Reduce heat and stir occasionally until the sauce is smooth.
Strain the sauce into a basin, then return it to the stew-pan.
Finish the sauce
Season with salt and lemon juice.
Beat the egg yolks with 3 tablespoons of milk and strain into the sauce.
Stir well and keep near the heat without boiling to prevent curdling.
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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Milk + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
Flour and butter 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
- Flour
- Thickens the liquid into a smooth sauce when cooked with the butter.
- Butter
- Adds richness and works with the flour to form a smooth thickening base.
- Egg yolks
- Enrich and thicken the sauce when gently heated, adding body and richness.
- Milk
- Forms the liquid base of the sauce, giving it creaminess and body.
The step that matters
Keep the sauce below a boil after adding the egg yolks. Egg yolks contain proteins that set with heat; if the sauce boils after they are added, the proteins tighten and curdle, leaving a grainy texture.
Swap the mace
How well each one fits the dish's main ingredients (milk, onion, flour, butter, lemon, egg):
- Parsleyfits better
- Capersfits better
- Nutmegfits better
- Macethe original
Fit is the average pairing score against milk, onion, flour, butter, lemon, 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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