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Dessert

Cup Custard

A simple baked custard made with egg, sugar, milk, and spices, cooked in a buttered cup.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Cup Custard

Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Cup Custard

Ingredients

Directions

Prepare the custard

  1. Break the egg into a coffee cup.

  2. Add sugar, salt, and nutmeg; beat thoroughly.

  3. Fill the cup with milk.

Bake

  1. Pour the mixture into a well-buttered cup.

  2. Place the cup in a pan of boiling water, reaching nearly to the top of the cup.

  3. Bake in the oven until the custard is set.

Chill and serve

  1. Chill and serve cold.

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.

Photo for illustrative purposes only · Contact us to use it

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 + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  2. Nutmeg + milktop 15% of all pairs
    Smell alikemoderate
    Cooked together14,685 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  3. Nutmeg + buttertop 16% of all pairs
    Smell alikemoderate
    Cooked together24,377 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  4. Egg + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  5. Egg + nutmegtop 17% of all pairs
    Smell alikelow
    Cooked together24,744 recipes

    Shared aroma: acetic acid (sour, vinegar).

Egg and nutmeg barely smell alike, yet cooks put them together in 24,744 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
Proteins set as the custard heats, giving it a firm, sliceable body.
Sugar
Adds sweetness and balances the savoury notes of the egg and milk.
Milk
Forms the liquid base, supplying moisture that keeps the custard tender.

The step that matters

Place the cup in a pan of boiling water. The water bath moderates the heat around the cup, so the egg proteins set gently. Without it, the custard can overheat, curdle, or turn rubbery.

Swap the nutmeg

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

  1. Cinnamonfits better
  2. Nutmegthe original
  3. Gingerfits less well
  4. Parsleyfits less well

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