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Plain White Sauce

A simple white sauce made with flour, milk, salt, and optional butter.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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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 ↓

Plain White Sauce

Ingredients

Directions

Make the sauce

  1. In a small bowl, blend the flour with a little milk until smooth.

  2. Pour the remaining milk into a saucepan and stir in the flour mixture.

  3. Cook over medium heat, stirring until it boils.

  4. Boil for 2 minutes, then add the salt.

Finish

  1. If desired, stir in a small piece of butter before serving.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  2. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, 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 milk as its starch swells with heat, giving the sauce body.
Milk
Forms the liquid base that the flour thickens into a smooth sauce.

The step that matters

Blending the flour with milk before adding it to the pan. Flour added directly to hot liquid clumps because its starch outside the grains gels before it can disperse. Mixing it smooth with a little cold milk first lets the grains separate, so the sauce thickens evenly without lumps.

“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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