Skip to main content
Dessert

White Sauce

A light lemon sauce made from egg whites, sugar, milk, and lemon juice.

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

Why it works: Lemon and milk are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 19,053 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

White Sauce

Ingredients

Directions

Make the custard

  1. Beat the egg whites until slightly stiff.

  2. Add the sugar and beat well until combined.

  3. Gradually add the boiling milk and mix thoroughly.

  4. Finally, stir in the lemon juice.

Serve

  1. Serve immediately if possible.

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. Lemon + milktop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

    Shared aroma: 2-nonenal (fatty, green).

  2. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

  3. Egg + milktop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

    Shared aroma: 2-nonenal (fatty, green).

  4. Sugar + milktop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Egg + lemontop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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

Egg whites
Beaten to a slightly stiff foam, they give the custard its light, airy structure.
Sugar
Sweetens the custard and helps stabilise the beaten egg white foam.
Milk
Adds liquid and richness, thickening gently as the hot milk warms the egg whites.
Lemon juice
Adds acidity and bright lemon flavour that balances the sweetness.

The step that matters

Gradually add the boiling milk and mix thoroughly. Adding the hot milk slowly while mixing spreads the heat evenly, so pockets of egg white do not cook into lumps and the custard stays smooth.

Swap the lemon

How well each one fits the dish's main ingredients (egg, sugar, milk):

  1. Vanillafits better
  2. Figfits about as well
  3. Raisinfits about as well
  4. Lemonthe original

Fit is the average pairing score against egg, sugar, milk. 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.

More lemon custard recipes

Pie 47Pudding 3 See all 178 →

You might also like

Lemon CakeLemon Cake228 recipesLemon IceLemon Ice147 recipesLemon SherbetLemon Sherbet103 recipesLemon Water IceLemon Water Ice55 recipes