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Soft Custards

Soft custard made by heating milk with spices, mixing with eggs and sugar, and cooking over a water bath until thick.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Cinnamon and lemon match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 7,950 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓

Soft Custards

Ingredients

Directions

Make the custard

  1. Scald the milk with mace, cinnamon, and lemon peel.

  2. In a bowl, beat the eggs and add the sugar.

  3. Pour the scalded milk into the egg mixture, leaving out the whites of 8 eggs.

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

Thicken and serve

  1. Set the pitcher in a kettle of hot water and stir constantly until it thickens.

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. Cinnamon + lemontop 7% of all pairs
    Smell alikestrong
    Cooked together7,950 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

  2. Mace + cinnamontop 10% of all pairs
    Smell alikemoderate
    Cooked together3,611 recipes

    Shared aroma: methyleugenol (clove, spice).

  3. Milk + cinnamontop 10% of all pairs
    Smell alikemoderate
    Cooked together12,655 recipes

    Shared aroma: cuminaldehyde (Spicy, cumin).

  4. Cinnamon + sugartop 10% of all pairs
    Smell alikelow
    Cooked together30,779 recipes

    Shared aroma: guaiacol (smoky, sweet).

  5. Milk + lemontop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

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

Cinnamon and sugar barely smell alike, yet cooks put them together in 30,779 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
Egg yolks set as they heat, thickening the custard and giving it body.
Milk
Forms the liquid base that the yolks thicken into a smooth custard.
Sugar
Adds sweetness and balances the richness of the yolks and milk.
Lemon peel
Adds a bright aromatic flavour that infuses into the scalded milk.

The step that matters

Stir constantly while it thickens. Egg yolk proteins set when heated, so if the custard gets too hot or sits still, it can curdle or turn grainy. Constant stirring in gentle hot water spreads the heat evenly and keeps it smooth.

Swap the mace

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

  1. Nutmegfits better
  2. Cardamomfits better
  3. Gingerfits better
  4. Macethe original

Fit is the average pairing score against milk, cinnamon, lemon, 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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