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Dessert

Soft Custards

A custard made by heating milk or cream with eggs and sugar, flavored with lemon or peach.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Milk and lemon 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 ↓

Soft Custards

Ingredients

Directions

Make the custard

  1. Boil the milk or cream in a saucepan.

  2. In a bowl, beat the eggs with the sugar until well combined.

  3. Pour the boiling milk onto the egg mixture while stirring continuously.

  4. Strain the mixture through a fine sieve into a pitcher.

  5. Place the pitcher in a pot of boiling water and cook until thickened, stirring frequently to prevent curdling.

Serve

  1. Pour the custard into glasses and let cool.

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 + lemontop 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. Milk + eggtop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

  4. Milk + sugartop 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

Eggs
Coagulate as they heat, setting the custard into a thickened, sliceable texture.
Milk or cream
Provides the liquid base and richness that the egg proteins set within.
Sugar
Adds sweetness and helps soften the set of the eggs for a smoother texture.

The step that matters

Cooking the custard over boiling water. Egg proteins set with gentle heat, but if the custard gets too hot or cooks unevenly it curdles and turns grainy. Frequent stirring and a gentle water bath keep it smooth.

Swap the lemon

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

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

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