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Dessert

Peptonised Milk Jelly

A gelatin dessert made from peptonised milk, gelatine, sugar, citrus juice, and alcohol, set in a mould.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Milk and rum work together. They rank in the top 12% of all ingredient pairs, and cooks put them together in 967 recipes. Both carry ethyl 2-methylbutyrate, which smells fruity, apple. The science ↓

Peptonised Milk Jelly

Ingredients

Directions

Prepare

  1. Dissolve the gelatine or isinglass in tepid water.

  2. Boil the peptonised milk until sufficiently digested (20 minutes to 3 hours).

  3. Add the boiled milk to the dissolved gelatine or isinglass.

Flavour and set

  1. Stir in sugar and lemon or orange juice to taste, along with the rum or brandy.

  2. Strain the mixture through a jelly bag or fine cloth.

  3. Pour into a mould rinsed in cold water and refrigerate to set.

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 + rumtop 12% of all pairs
    Smell alikemoderate
    Cooked together967 recipes

    Shared aroma: ethyl 2-methylbutyrate (fruity, apple).

  2. Sugar + rumtop 14% of all pairs
    Smell alikelow
    Cooked together2,908 recipes

    Shared aroma: beta-damascenone (apple, rose).

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

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

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

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

  5. Milk + sugartop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

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

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

Gelatine or isinglass
Forms the gel that sets the milk into a firm, wobbly jelly.
Peptonised milk
Provides the creamy base and flavour, with its proteins partly broken down by peptonising.
Sugar
Adds sweetness and balances the tartness of the citrus juice.
Lemon or orange juice
Adds acidity and bright citrus flavour that cuts the richness of the milk.
Rum, brandy, or wine
Adds aroma and warmth to the jelly's flavour.

The step that matters

Boil the peptonised milk for the full digestion time. Peptonised milk must be heated long enough for its enzymes to break down proteins fully. If it is undercooked or too brief, the milk may not have digested enough, and a jelly made with it can taste bitter or set unevenly.

Swap the lemon

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

  1. Vanillafits better
  2. Pineapplefits better
  3. Bananafits better
  4. Lemonthe original

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