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Drink

Lalla Rookh or Frozen Egg-nog

A frozen dessert drink of cream, eggs, sugar, nutmeg, rum and brandy, in the style of egg nog.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Rum and brandy are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 1,058 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Lalla Rookh or Frozen Egg-nog

Ingredients

Directions

Make the mixture

  1. Beat the eggs until stiff.

  2. Add the sugar and beat again.

  3. Mix in the cream, nutmeg, and a pinch of salt.

Freeze and finish

  1. Freeze the mixture.

  2. Once frozen, stir in the rum and brandy.

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. Rum + brandytop 5% of all pairs
    Smell alikemoderate
    Cooked together1,058 recipes

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

  2. Cream + sugartop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

  3. Nutmeg + rumtop 11% of all pairs
    Smell alikemoderate
    Cooked together646 recipes

    Shared aroma: alpha-pinene (pine, turpentine).

  4. Cream + nutmegtop 13% of all pairs
    Smell alikemoderate
    Cooked together7,920 recipes

    Shared aroma: acetic acid (sour, vinegar).

  5. Rum + sugartop 14% of all pairs
    Smell alikelow
    Cooked together2,908 recipes

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

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Eggs
Beaten until stiff, they trap air and give the frozen mixture a light, rich body.
Cream
Adds fat for a smooth, rich texture that stays creamy when frozen.
Sugar
Adds sweetness and helps keep the frozen texture softer rather than icy.
Rum
Alcohol keeps the frozen mixture from freezing rock hard and adds flavour.
Brandy
Alcohol keeps the frozen mixture softer and adds aromatic depth.
Nutmeg
Contributes a warm, aromatic spice flavour to the custard base.

The step that matters

Beat the eggs until stiff. Eggs beaten to stiff peaks trap air in their foam, which gives the frozen dessert its light body. Underbeaten eggs hold less air, so the result turns out denser.

Swap the nutmeg

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

  1. Nutmegthe original
  2. Cinnamonfits about as well
  3. Gingerfits less well
  4. Allspicefits less well

Fit is the average pairing score against cream, egg, rum, sugar, brandy. 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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