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Dessert

Boiled Custard

A simple custard made by heating milk, mixing with beaten eggs, and thickening until set.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Milk and egg are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 88,785 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Boiled Custard

Ingredients

Directions

  1. Heat the milk in a saucepan until it just comes to a boil.

  2. While the milk is heating, beat the eggs in a bowl.

  3. Remove the milk from the heat and stir in the beaten eggs.

  4. Return the mixture to the stove and stir until it thickens.

  5. Sweeten and flavor to taste.

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

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

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

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

  3. Egg + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

Milk and sugar barely smell alike, yet cooks put them together in 77,875 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

Milk
Forms the liquid base and adds richness and body to the custard.
Eggs
Their proteins set as they heat, thickening the milk into a custard.
Sugar
Adds sweetness to balance the milk and eggs.

The step that matters

Return the mixture to the stove and stir until it thickens. Egg proteins thicken the custard as they heat, but if the heat is too high or stirring stops, they can curdle or scramble. Gentle heat and constant stirring keep the custard smooth.

“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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